12 best accurate ph meters

Product description

High Accurate Digital PH Meter

Do you want to know the health of drinking water?

Still worried about the water in the swimming pool?

Test with our pH meter! Accurate pH meter makes your living environment better!

How To Use :

1. Remove protective cap.

2. First rinse the electrode with distilled water and suck it with filter paper.

3. Turn the meter on by pressing “ON/OFF” key;

4. Immerse the pH meter electrode in the solution to be tested (should not be over the immersion line;

5. Stir gently and wait around 30 seconds till the reading stabilizes.

6. After finishing, clear the electrode with pure water, turn the meter off by pressing “ON/OFF” key.

7. Always replace the protective cap after use.

Specifications:

Measuring range: 0.00-14.00 pH

Resolution: 0.01 pH

Accuracy: 0.01 pH

Batteries: 2X 1.5V LR44 (included)

Automatic temperature compensation: 0-80℃(32-176℉)

Dimensions: 1.2x0.60x6.00 inch

Net Weight: 52g/1.83 oz

Package Includes:

1 x PH Meter

1 x Carrying case

3 x PH buffer powder

1 x User's manual

• ✔ WIDE USE: Pocket Size PH Meter is the ideal test kit for home and laboratory uses. Ideal use to test for water, pools, aquariums, spas, hydroponics, food, wine and beer making and more.
• ✔ FAST AND ACCURATE: Ensure your pool, general hydroponics ph or even drinking water has a perfect pH balance and safe for use with Tester precision pH accuracy. Tester has a sensitive electrode sensor to read accurate pH levels. The included detailed manual will show you how to get the best accurate and stable reading.
• ✔ AUTOMATIC TEMPERATURE COMPENSATION: No more need to take care about the temperature of testing liquid, as ph meter has built in (ATC) automatic temperature compensation, so that it can accurately determine pH value of the sample at any temperature in a range of 0°C - 80°C (32°F - 176°F).
• ✔ AUTO CALIBRATION: The PH meter has an auto temprature compensation feature that adjusts to water temperatures and water quality to give pH readings almost instantly. As well, you can calibrate the tester with one touch button using Buffer Powder.
• ✔ MAKE YOU SATISFIED WITH THE PRODUCTS: Come with 1x PH meter, 1x user manual, 2x 1.5V LR44 button cells(build-in), 3x PH Buffer Powders.

User questions & answers

Question:	Can this item be used tp test PH in garden soil
Answer:	No, you need a probe that can be inserted into the soil.
Question:	After 2 months of occasional use, Ph meter reads all zeros (0000). What to do
Answer:	Test my pH of water and leave in cup for about 5-10 seconds and should give answer of correct pH
Question:	How do you change the battery? My ph wont even turn on
Answer:	The top slides off
Question:	Do i need to store this in a storage solution to keep the tip from drying out? If so, what
Answer:	Do i need to store this in a storage solution to keep the tip from drying out? If so, what?

Product description

Simply the most reliable pocket pH tester with the best value for general-purpose pH testing e.g. hydroponics, horticulture, pools and spas, water treatment, beverage making, education, environmental monitoring, etc. Up to 3 points of Auto. calibration and 0 to 50˚C Auto temperature compensation (ATC), 0. 1 pH Accuracy with 0 to 14. 0 pH measuring range; Auto. recognition and indication of stable values improves repeatability, saving you the trouble of guessing when to manually hold measurement. PH20 comes with a complete kit of premixed calibration solutions (4. 00 and 7. 00), 4 AAA batteries, and a lanyard all in a portable carrying case. Smart Self-diagnosis, warning of incorrect buffer solutions and incorrect calibrations. IP67 water-resistant. Up to 2000 hours' operation powered by AAA alkaline batteries. The product is CE and RoHS certified, and is manufactured under an ISO 9001: 2015 certified quality system.

• Easy auto. calibration with buffer recognition; auto. temp. compensation (ATC) ensures accuracy in various temperatures (32 to 122F)
• Backed by Apera quality pH sensor with low impedance, ensuring high response rate
• Comes in a rugged carrying case with pH 4&7 buffers and a lanyard
• Auto recognition of stable values improves consistency, so you don't have to guess when to manually hold measurement
• Up to 2000 hours' continuous operation, powered by AAA batteries

User questions & answers

Question:	I will be using this meter once a month. Do I need storage solution for the probe
Answer:	Storing the probe in the storage solution helps keep the probe's sensitivity and accuracy. So it's a recommended practice. While storing the probe without any solution will not damage the probe, it's just going to cause the probe to lose its sensitivity and accuracy temporarily. Store the probe in the storage solution again for about 10 minutes, the sensitivity and accuracy can be restored.
Question:	Can anyone confirm if this comes pre calibrated
Answer:	The tester has been calibrated before they went out of the factory. But since there is a time gap before they reach our customers, we recommend doing the calibration with the included premixed buffer solutions before your first use.Thanks for your interest!
Question:	Can this be used to analyze urine
Answer:	Yes, it can tests urine with no problem. You can use the probe cap as a container for the urine.
Question:	How often does this pH meter need to be re-calibrated and/or how can I tell when it needs to be re-calibrated
Answer:	The manufacturer recommends keeping the device probe in a neutral storage solution; the protective tip case/container actually has a 'fill' line for guidance, and it is designed to hold a liquid safely when stored as indicated -- If someone uses distilled or deionized water by itself as a storage solution, the salts contained in the probe tip will dissipate and the probe will then need to be replaced--about $25, plus a fine headache trying to get it right. If you are out of storage solution keeping the probe wet somehow is better than dry--but don't store without the specialized solution for more than a day or so; these are typically $10-$13 for 100ml - 250ml size bottles on Amazon.

Product features

Fluid Precision since 1991

Apera Instruments PH20 Value pH Tester Kit simply provides reliable and quick pH measurements for general water solutions' pH testing, such as hydroponics, horticulture, pools and spas, beverage making, education, aquarium and aquaculture, water treatment, environmental monitoring, etc.

Intelligent Functions

• 1-3 point automatic calibration with ATC
• Auto recognition and reminder (a smiley face) of stable readings takes the guesswork out of getting a stable measurement.
• Low battery alarm; Auto. power off if no operation for 8 minutes
• Supports switch of pH standard series (USA or NIST) and temperature unit (˚F or ˚C)

Sensor Shield

The latest PH20 probe all come with the sensor shield that protects the sensitive glass membrane from accidental damage.

High-sensitivity pH Probe

Apera's proprietary lithium glass pH sensor lays the foundation for quick and reliable pH measurements.

Large Clear LCD Display

Simultaneous temperature display along with stable reading indicator and completed calibration icons.

Powered by AAA batteries

Up to 2000 hours of operation. Installation: All 4 pieces of batteries' positive sides (+) must face up.

• MULTIFUNCTIONAL TESTER: 5-in-1 water quality tester measure pH / TDS / EC / Temperature and Salinity of your liquid sample in one handy unit.
• RANGE: pH: 0.01~14.0pH; 0.01pH ; EC: 0~10000µS/cm, 10.01~19.99mS/cm, 20.1~400mS/cm (convert range automatically); TDS: 0~10000ppm, 10.1~200.0ppt (convert range automatically); Salinity: 0.01~25.0%, 0~10000ppm, 10.1~200.0ppt.
• WATERPROOF RATING: IP67 is an international waterproof and dustproof certification. Protection against dust intrusion, short-time immersion.
• WIDE USE: Pocket Size PH Meter is the ideal test kit for home and laboratory uses. Ideal use to test for water, pools, aquariums, spas, hydroponics and more.
• WEIGHT AND DIMENSION: Meter Size: approx. 183 x 37 x 37mm (7.2 x 1.5 x 1.5in) ; Weight: approx. 90gms (3.2oz).

User questions & answers

Question:	Is the output of this device in mV if so what is the conversion of mV to pH units
Answer:	The voltage output of the ph electrode range is -450mv-450mv
Question:	Where can I have a soft copy of the instruction manual and spec sheet for this device
Answer:	You can feel free to contact our customer service via amazon message, we will provide to you.
Question:	What input voltage range does this probe use
Answer:	They read charged hydrogen (h+) ions that get through a glass membrane. DC Milivolts
Question:	can this be submerged
Answer:	Yes it can be in the water 24/7.

Product features

Specifications:

• Range:
  • pH: 0.01~14.0pH; 0.01pH resolution; ±0.05pH accuracy
  • EC: 0~10000µS/cm, 10.01~19.99mS/cm, 20.1~400mS/cm (convert range automatically); 1µS/cm, 0.1mS/cm resolution; ±2% F.S. accuracy
  • TDS: 0~10000ppm, 10.1~200.0ppt (convert range automatically); 1ppm or 0.1ppt resolution; ±2% F.S. accuracy
  • Salinity: 0.01~25.0%, 0~10000ppm, 10.1~200.0ppt; 0.01%, 1ppm, 0.1ppt resolution; 0.01~5.0% (±0.1%), 5.10~25.0% (±1%) ±2% F.S. accuracy
  • Temperature: 0.1~60°C (32~140°F); 0.1°C/°F resolution; ±0.5°C accuracy
• Calibration (Automatic Calibration)
  • EC: 3 points calibration ( optional solution 1413µS/cm, 12.88mS/cm, 111.8mS/cm)
  • pH: 3 points calibration and recognize standard solution automatically (6.86pH, 4.0pH, 9.18pH)
• TDS Factor: 0.4~1.0

LCD BACKLIGHT FUNCTION

PH tester bright backlit LCD display, easy to use no matter in the day and night environment, and accurate measurement and clear display results. With Automatic Temperature Compensation (ATC 0~60°C)

IP67 WATERPROOF LEVEL

Using the meter in you analysis it comes with IP67 is an international waterproof and dustproof certification. Protection against dust intrusion, short-time immersion.

LOW BATTERY INDICATOR

The ORP Tester shuts off automatically after 5 minutes of non-use to conserve batteries. Features a hold function that saves measurements for convenient reading and recording.

• ·✔ EASY READING BIG BACKLIT LCD DISPLAY : Hofun water quality meter with Big Backlit LCD is far superior than other ones, which allows wider angles of data reading and night reading.
• ·✔ WIDE USAGE: Pocket Size PH Meter is the ideal PH tester for water, pools, aquariums, spas, hydroponics, food, wine and beer making and more.
• ·✔ FAST AND ACCURATE: Ensure your drinking water,pool, general hydroponics PH has a perfect pH balance and safe for use with Hofun precision pH accuracy PH tester . Hofun PH meter for water has a sensitive electrode sensor to read accurate pH.
• ·✔ AUTOMATIC TEMPERATURE COMPENSATION: No more need to worry about the temperature of to-be tested liquid, as PH tester digital has built in (ATC) automatic temperature compensation, so that it can accurately determine pH value of the sample at any temperature in a range of 32°F - 140°F (0°C - 60°C).
• ·✔[ EASY CALIBRATION ]: The Hofun PH pen is featured with auto temperature compensation which can be adjusted to water temperatures and water quality to give PH readings almost instantly. As well, the tester can be tested with using Buffer Powder.

User questions & answers

Question:	Does the ph pen work well for aquarium
Answer:	Yes, Hofun ph pen can be used for water, pools, aquariums, spas, hydroponics, food, wine and beer making and more.
Question:	How accurate is this ph tester
Answer:	This ph tester has 0.01 PH High Accuracy, 0-14 PH Measurement Range
Question:	Is this ph meter esay to calibrate
Answer:	Yes, this ph meter is esay to calibrate with using Buffer Powder
Question:	Is this ph tester easy to use
Answer:	Yes, this ph tester is very easy to ues, Put the probe into water and LCD shows accurate results in seconds. Equipped with premium quality &sensitive probe, Hofun water tester enables quick and convenient test.

Product features

Hofun Professional PH meter

Hofun ph meter with Big Backlit LCD is far superior than other ones, which allows wider angles of data reading and night reading.

RELIABLE WATER TESTER

Equipped with premium quality &sensitive probe, Hofun water tester enables quick and convenient test. Put the probe into water and LCD shows accurate results in seconds.

EASY CALIBRATION

The Hofun PH pen is featured with auto temperature compensation which can be adjusted to water temperatures and water quality to give PH readings almost instantly. As well, the tester can be tested with using Buffer Powder.

Ideal Water PH Tester for Household Drinking, Pool and Aquarium

Package Includes:

► 1 x PH Meter

► 3 x Calibration packets

► 1 x User's manual

Note:

► Clean the electrode with distilled water every time before and after use

► Be careful with the glass probe since it may be a little fragile when you use.

► Remember to gently wipe it with a clean, soft cloth when you're done before capping it again.

► Open the battery case or replace battery, then need to re-calibrate the meter

• 3-in-1 water quality tester: This PH meter has a three-in-one function, which can measure PH, TDS and temperature with high precision at the same time. All-round measurement of water quality to ensure healthy water quality.
• Easy to use: After calibration, put the sensor in the solution to be tested, and get the reading immediately. Please rinse the probe with water carefully before performing another liquid, otherwise you may get inaccuracy reading.
• Backlit design: There is no need to worry about seeing the displayed value if the light is insufficient. ORAPXI PH meter features a green backlit LCD to help you obtain the measurement results clearly in any situation.
• Automatic Temperature Compensation: Auto temp compensation (ATC) ensures accuracy in various temperatures (32°F~140°F), It can solve the possible error perfectly caused by the change of liquid temperature, so as to make the pH readings more accurate.
• Wide applications: The instrument is ideal for drinking water, daily household, hydroponics, beer brewing, swimming pool, laboratory, food processing etc.

User questions & answers

Question:	What is the warranty on this
Answer:	Free return within 30 days after receiving the products, WARRANTY or free REPLACEMENT service is provided within 12 months.
Question:	What kind of batteries does it need
Answer:	3 LR44 batteries required. And 3 LR44 batteries are included in the package as a giveaway, so you don't need to buy them separately.
Question:	May I know after a result is stabilised, how long will it remain in the display before vanishing on average? Also, would the probe have to remain in t
Answer:	Mine failed 32 days after perchance would not cal to 4.01.
Question:	What country is this product made
Answer:	It's made in China.

Product features

ORAPXI multi-parameter water quality tester

This instrument can test PH, TDS and Temperature accurately. It is very simple to use, and may satisfy your requirements in different aspects.

With the automatic temperature compensation function, ORAPXI pH meter could accurately read the pH value of the sample in the temperature range of 32 °F-140 °F

It can be widely used in all water quality testing situations, water purification applications, aquaculture, hydroponic, pool, water treatment and so on.

High-precision electrode

High sensitivity glass probe of this water tester is made of glass-sensitive film (25MQ) with low resistance, which greatly increases its sensitivity and accuracy.

Backlit design

The backlit LCD design makes it easy to read test results regardless of the light. A gentle green backlight protects your eyes from glare.

Batteries Included

Three batteries can be used for several months. The meter comes with three extra batteries. The five-minute auto power-off design can extend battery life.

Sensitive button

The sensitive button design is user-friendly, support one-tap switch from PH to TDS.

How to Calibrate the PH Meter?

1. Before calibration, add the pH4.00/pH6.86/pH9.18 buffer powder into beaker with 250ml of distilled water, then stir until the powder has completely dissolved.

2. Press the ON/OFF button to turn on the meter; Adjust to PH mode;

3. Put the electrode into pH4.00/pH6.86/pH9.18 standard solution, waiting for the readings to stabilize (usually 5~10 Seconds);

4. Press and hold the MODE/CAL button and release after 6 seconds;

5. Until the readings of pH4.00/pH6.86/pH9.18 is no longer flashing, the calibration of pH4.00/pH6.86/pH9.18 is completed.

Product description

Apera Instruments PH60 Pocket pH Tester is designed for reliable and easy pH measurement for general water solutions, such as in hydroponics, horticulture, aquaculture, pools& spas, water treatment, cooling towers, environmental monitoring, beverage making, education, etc. The meter comes with a replaceable pH probe (PH60-E) for general water solutions pH test. The meter is also compatible with 3 other types of pH electrodes and an ORP probe (sold separately) for different applications such as solid samples and surface tests. NOTE: Add a few drops of 3M KCL liquid (included in the kit) to their test sample (usually low ion-strength liquid like distilled water or RO water), which will significantly help accelerate the stabilization without affecting the pH reading.

• NOTE: A few drops of water are added to the electrode cap before the product leaves the factory. This is to maintain the sensitivity of the electrode. Therefore, when you use it for the first time, it is normal to find water droplets in the electrode cap
• Accuracy: 0.01 pH; range: -2.00 to 16.00 pH, 32 to 122˚F (0 to 50˚C); Auto. Power-Off: 8 minutes without operation
• Easy 1-3 points auto. calibration, recognizes 5 types of solutions (1.68, 4.00, 7.00, 10.01, 12.46); Auto Temp. Compensation (ATC) ensures accuracy in various temperatures (32-122˚F)
• High quality replaceable glass pH probe, suitable for regular water solutions e.g. pools&spas, hydroponics, environmental monitoring, cooling towers, beverage, etc.
• Large LCD with 3 backlit colors (indicating different modes), dual display of temp./pH, and reminders of completed calibrations and stable readings
• The smiley icon indicates stable readings so you won't have to guess when is the right time to record the measurements
• COMPLETE KIT with READY-TO-USE calibration solutions, calibration bottles, storage solutions, AAA batteries, and a lanyard all in a rugged portable case

User questions & answers

Question:	Since, in the video, it shows a 10.0 calibration ability but is not included.....Where can the 10.0 solution be purchased at....any links
Answer:	It is true the travel kit comes with gift bottles of the 4 and 7 solutions but not the 10. You can purchase our 10.01 buffer solution here: https://aperainst.com/ph-1001-standard-calibration-buffer-solution-001-ph-accuracy-at-25c-77f Thank you for your interest!
Question:	Would this work for chemistry experiments (done as part of a homeschool chemistry course
Answer:	Yes, but advanced warning, we recommend keeping the ph measure above ph of 2 and below a ph of 12 as ph measures beyond those points will shorten the life of the sensor and is considered improper use and voids the warranty. It may be wise to check in advance if the chemistry course will have the student delving into substances more acidic than lemon juice like HCL, or more alkaline than hand soap. Be sure to have distilled water to rinse all substances away from the probe when testing.
Question:	Does this check PPM
Answer:	No, that would be our EC60 and PC60 that will do PPM under the measurement for Total Dissolved Solids (TDS). PH60 does only PH and mV for an ORP probe sold separately.
Question:	For egular maintanance, does the device /probe must be kept inside a solution or can it be kept inside its case dry
Answer:	It needs to be kept in the solution. The cap that comes with this is not the best solution to keep it wet either.

Product features

Premium Series PH60 Pocket pH Tester Kit

Apera Premium Series PH60 Pocket pH Tester Kit is designed for professional pH measurements in general water applications e.g. hydroponics, horticulture, pools and spas, aquarium, aquaculture, beverage making, water treatment, environmental monitoring, education, etc.

Default Probe – High-Sensitivity pH Probe with Sensor Shield

• pH probe is the fundamental component that determines the measuring performance of a pH meter. Apera's proprietary sensitive lithium glass membrane of ensures accurate and stable measurements with a fast response. A temperature sensor is built in for automatic temperature compensation (32 to 122˚F) to increase reliability in samples of different temperatures.
• A sensor shield is built on top of the probe to protect the sensitive glass membrane from accidental damages.
• This probe is made for general water applications such as hydroponics, horticulture, aquaculture, aquarium, pool and spas, water treatment, beverage making, environmental monitoring, and education.

Compatible Probe – PH60S-E Swiss Spear pH Probe (sold separately)

• This probe is built with Swiss sensor technology and materials, featuring an impact-resistant spear glass membrane with a long-life reference system and a built-in temperature sensor. It is designed for direct test of cheese, meat, fruit, vegetables, dough, sushi-rice, solid growth medium, and other solid/semi-solid samples. It also works well for general water solutions.
• This probe is compatible with PH60 Tester. It is not included in the PH60 Tester Kit, and is sold separately.

Compatible Probe – PH60F-E Flat pH Probe (sold separately)

• This probe features a flat glass membrane with a built-in temperature sensor and 3 ceramic junctions for thorough contact with test surface, which is designed for flat surface pH testing such as skin, fabrics, textiles, paper, leather, and small-volume solution samples (ideal for saliva pH test). It also works well for general water solutions.
• This probe is compatible with PH60 Tester. It is not included in the PH60 Tester Kit, and is sold separately.

Compatible Probe – ORP60-E ORP Probe (sold separately)

• This probe features a platinum ORP sensor with a built-in temperature sensor. Designed for general water solution's ORP measurement (Oxidation-Reduction Potential). Press Mode button to switch to mV mode before measuring ORP.
• This probe is compatible with PH60 Tester. It is not included in the PH60 Tester Kit, and is sold separately.

Large 3-color backlit screen

• Blue: measurement mode
• Green: calibration mode
• Red: alarm for out-of-range readings

Easy-to-install replaceable probe

Typically the service life of a pH probe is 1-2 years under proper use and maintenance. The replaceable probe helps you save money in the long run.

Up to 2000 hours of operation powered by AAA batteries

Installation: All 4 pieces of AAA batteries' positive sides (+) Must Face Up.

Rugged design

IP67 water-resistant rating, ideal for operation in harsh environments and conditions

Product description

This 3-in-1 soil moisture meter is designed to better know the condition of your plant, detect soil moisture, help you know the pH value of the soil, determine if plants get enough sunlight to keep plants grow healthier !



If Soil Test Kit does not work, Please try doing the following：



Question A： Inaccurate pH measurements

Answer: . Since soil most often is in/close to neutral state (with pH value of 7), it is highly likely that you find the needle in display window stay still (because the default pH value is set at somewhere between 7 and 8) when you use it to test the pH value of soil. Customers sometimes are misled by this appearance and hence regard the tester as a defective unit by mistake.

. Do not use soil test kit to test pure water or other liquids. It can only be used to test soil.

. If the soil is too loose and very dry, try adding some water before testing it.



Question B: Humidity / Moisture does not work.

Answer: If the soil is too dry, the indicator will not move, and water before the test.



Question C: Light does not work.

Answer: To maximize the accuracy of sunlight readings, aim the light sensor on the top of the meter (looks like a miniature mirror) at the sun.



！Kindly Note:！

1.Do not leave the meter in the soil for a long time and Please wipe and clean the probe after each use.

2 .Do not force it into very hard soil or touch hard objects since it will be easy to damage the probe.

3.Don't leave it in the soil for more than an hour for use.



How to use soil pH Meter

☞Step 1: Push soil pH Meter the switch to the humidity/pHght position

☞Step 2: Insert the probe into 2-4 inches of soil (2/3 of the probe)

☞Step 3: Adjust the position of the probe until the pointer on the dial slightly swings

☞Step 4: After 10 seconds, please pay attention to the moisture/pH value in the dial

• ☀【3-IN-1 Soil pH Meter】You can use soil moisture meter to measure moisture, pH value and sunlight intensity in the garden. It's helpful for you to plant flowers, plants and make them grow healthy and strong.
• ☀【 Accurate Soil Tester & Humidity Meter】Through double needle measurement, these two probes can scientifically and accurately measure the moisture and pH value of vegetation, and sensitively detect changes in soil, so that plants can be planted with reliable data and better Plant flowers in the indoor outdoor garden. Vegetables etc. Biology provides effective help.
• ☀【Easy to Use Plant Water Meter】After inserting the plant moisture meter, wait 10 seconds to read the intuitive data, which is convenient and quick. The soil test kit relies on electrodes, does not require batteries, has reliable data, and is an ideal gardening tools for planting and garden.
• ☀【Soil Meter with Widely Applicable Places】The ph tester digital Suitable for home garden breeding, rice planting,vegetable planting,forest planting, succulent soil,potted plants,flower planting,greenhouse planting,garden planting,soil testing,etc.,to meet all your needs for soil testing.
• ☀【Kindly NOTE】This ph soil tester for garden soil can not be applied to test pH value of any other liquid. If the soil is too dry the indicator will not move, and water it before

User questions & answers

Question:	Can this soil test kit be used to measure the PH of other things such as shampoo
Answer:	Hi, Calibration solution is packed with item. Thanks
Question:	I can't get the pH to work, but light and moister do work. What am I doing wrong
Answer:	Mine came with batteries. But The top slides off and it takes 1-- cr2032 3v
Question:	Does it work well? I'd like to buy one for the light meter
Answer:	A stack of small watch batteries. I think the CR-4's. Not sure. I tossed this meter in the trash it sucked so bad. Bought an Oakton and have been much happier. The Hanna took nearly 10 minutes to give you a PH reading that was correct. Oakton meter takes maybe 15 seconds to give a perfect PH reading on a slow day.
Question:	I can't get the pH to work, but light and moister do work. What am I doing wrong
Answer:	yes, i do have trouble reading.

• EASY MEASUREMENT AND ACCURATE RESULTS – no more time consuming paper strips or other inaccurate pH test chemicals, our device is a digital pH tester which will allow you to test your liquid quickly and accurately within ±0.01 pH - no matter what your liquid is or whether you are a new or experienced user
• AUTOMATIC CALIBRATION – our 7Pros PH meter comes factory calibrated, but recalibration is required in case of long period of inactivity or after a frequent use. For a proper calibration you get 2 sets of calibration powder (6 packets), no need of any kind of screwdrivers to calibrate, you just have to push the auto-calibration button. Easy Instructions manual is included
• IDEAL FOR ANY HOUSEHOLD- You can use this small, but powerful, device to measure your aquarium, pool, pond in a garden, bath tub to test the levels of alkalinity in your drinking water, urine, RO System, spa, soap mixtures, food, wine, beer or any other liquids. Do you Travel a lot? Make sure the water you drinking abroad is good enough - take your 7Pros pH meter with you and test the water before drinking. Along with a tds meter it will form a perfect travel kit.
• FAST RESULTS, CONVENIENT SIZE - it only takes a few seconds for your result to appear on screen. Simply press "ON", stir gently and the reading will stabilize on the display in moments. This portable size instrument allows you to carry it around easily in your pocket and do your measuring anywhere. Its special plastic case will protect it whether you take it to the pool, on a trip, to the beach, camping or a picnic
• AUTOMATIC TEMPERATURE COMPENSATION - no more need to take care about the temperature of testing liquid, as 7Pros meter has built in (ATC) automatic temperature compensation, so that it can accurately determine pH value of the sample at any temperature in a range of 0°C - 80°C (32°F - 176°F)

User questions & answers

Question:	The buffer powder that came with meter was 4.01 instead of 4.00 - same thing
Answer:	This grill mat measures 42" wide (left to right) by 26" deep (front to back) and is about 1/4" thick.https://www.amazon.com/gp/offer-listing/B00AUKCYF4/?seller=ASIRD3RM6OQ4Thanks,American Floor Mats
Question:	Can this be used for cheese making
Answer:	I wouldn't use it outdoors. It's an indoor mat.
Question:	Will this provide an accurate ph reading for urine
Answer:	It was a Christmas gift for my sister-in-law. I called her and she said it measured 30" x 19". I remember that it was heavy rubber, and looked like pretty good quality.
Question:	If you use the 4.00 and 6.86 powders to calibrate, will the tester still be able to test water over 7.00 accurately
Answer:	unfortunately no. They are made to order with a 10 day lead time.

Product features

Best tool for testing pH in aquariums and saltwater tanks

One of the most common concerns of aquarists is pH. Some aquaria have pH that is too high, some too low. Some have pH just right but don't know it. The first step in solving this problem is to ensure that you are measuring pH correctly.

A pocket device for testing pH in ponds

Water quality is one of the most overlooked aspects of pond management - until it affects fish production. pH is a measure of whether water is acidic or basic. Fish have an average blood pH of 7.4, so pond water with a pH close to this is optimum

Hydroponics

It is important to keep your hydroponic system's nutrient solution properly balanced and with the correct nutrient concentration using the right hydroponic testing equipment. 7Pros pH tester will give you reliable readings of pH levels.

Drinking Water

Water is consumed by the plants and animals we depend on, and we directly consume it ever day. The pH level of water can provide information on potential contamination. Consequently, testing the pH of water can be an important public health precaution

Kombucha making

Monitoring the Kombucha brew for safety isn't quite as daunting as it may seem. In fact, the best testing tool for brewing Kombucha is your taste buds. However, if you prefer scientific results, we recommend the 7Pros pH meter to ensure your Kombucha is at its best.

• ▶ 【Automatic Calibration】: Often troubled by calibration problem? Just one touch button can help you calibrate the digital pH tester. Featuring a three-point calibration method with simple calibration procedures, the Dr.meter pH testing device can automatically identify the calibration liquid to give you the pH reading almost in a flash.
• ▶ 【Convenient pH Value Reading】: Get the job done with ease. Ready to read the pH value? Just know the liquid quality with one-button lock reading function. It really is that easy.
• ▶ 【utomatic Temperature Compensation】: With automatic temperature compensation function (ATC), the Dr.meter pH meter can solve possible inaccuracy caused by the change of liquid temperature, making the pH more accurate.
• ▶ 【High Accuracy】: Have you ever seen a digital pH meter designed with premium accuracy together with fast response? You can do now with Dr.meter pH tester. Equipped with high-quality and high-accuracy algorithm chip and electrode, the Dr.meter pH tester is the perfect choice for solution quality testing.
• ▶ 【Warm Tips】: After each use, please confirm whether the sponge in the electrode protective cover is wet. If not, please drop in an appropriate amount of pH 4.0 solution in time. If you have not used the pH meter for a long time and forget to add PH4.0 buffer to the sponge, please put the composite electrode into the pH4.0 buffer or tap water for more than 24H before use, and then calibrate and use it.

User questions & answers

Question:	What is the accuracy rating? I see the precision is 0.01, but what is the accuracy? That could be very different
Answer:	If you calibrate it before it is used then it seems to be reliable to .02
Question:	Why does the cap contained some condensation
Answer:	To be clear, the best way to destroy your pH probe is to store it in water, like the other answers recommend. You need to store it in a 30% potassium chloride solution. Go to your grocery store and buy salt substitute. Comes in a blue container and says "Nu-salt" on the label. The ingredient should be potassium chloride. Take a container that measures 100 mL, add 30g of potassium chloride and fill up to the 100 mL line with distilled water. That's what you store it in.
Question:	Does the elctrode need to be stored in kcl solution? what kind
Answer:	After each use, please confirm whether the sponge in the electrode protective cover is wet. If not, please drop in an appropriate amount of pH 4.0 solution in time. If you have not used the pH meter for a long time and forget to add PH4.0 buffer to the sponge, please put the composite electrode into the pH4.0 buffer or tap water for more than 24H before use, and then calibrate and use it.
Question:	Can Someone take the TIME - to explain exactly what to do with this Thing -I'm very elderly and don't understand - my meter has readings all over
Answer:	First you have to calibrate it to be sure you're getting accurate readings. Mix the packets that came with the meter each in 250ml of DISTILLED WATER. I use a clean glass jar (previously held tomato sauce) once you have your solutions (4.0, 6.86 and 9.18) turn on the meter insert it into the 6.86 solution HOLD IT STILL AND WAIT FOR THE READING TO STABALIZE(meaning the reading might still change a little but it slows down and hovers around a certain value. If you can count more than 5 seconds and the reading hasnt change You NAILED IT!) now hold CAL button for a couple seconds until Cal appears then release the CAL button ( it will show you the off reading then it will adjust and say "6.86" then "SA") Clean the electrode in Distilled water and repeat this process for 4.0 and 9.18 solutions it will say "END" when all is finished. Now you are ready to test, simply turn on and hold it still in whatever you are testing and dont forget to hold still until readings stabilize (usually 10 to 20 seconds). ps the "hold" button is for when you cant see the display as in a dark bucket, just count to 15 then press hold and you will have an accurate reading

Product features

How to Calibrate the pH Meter

1. Before calibration, prepare a beaker containing a pH 4.00 solution, a beaker with pH 6.86 solution, and a beaker pH 9.18 solution. Make sure that each solution is 250ml and at a stable temperature of 25℃

2. Prepare 3 separate beakers with distilled water.

3. Press the ON/OFF button to turn on the meter.

4. Remove the cap and immerse the electrode into the PH6.86 buffer solution. Stir gently and wait for the value to stabilize.

5. Press and hold the CAL button for 3 seconds. Hold the electrode into the solution until the LCD screen displays a value of pH 6.86.

6. Rinse the electrode with distilled water and blot dry. Repeat steps 4, 5, and 6 for the pH 4.00 and pH 9.18 solutions.

• ✔ACCURATE AND RELIABLE: To achieve high accuracy, equipped with premium quality titanium alloy probe, and reliable Automatic Temperature Compensation (ATC) ensures reading always be accurate at various temperatures.
• ✔MULTIFUNCTIONAL AND UPGRADED: Professional TDS, EC and Temperature Pen 3 in 1. Upgraded with big backlit LCD for easier reading, and auto-lock function for easier use.
• ✔EASY AND INSTANTLY: Just turn TDS meter on and stir water gently, then stabilized readings will be auto-locked on LCD in seconds, and the tds ppm meter will shut off automatically if without operation over 2 minutes.
• ✔MULTIPURPOSE TDS TESTER: Test the purity of drinking water to ensure it's healthy, monitor if Reverse Osmosis (RO)/DI System works properly, whether filter need replaced, maintenance aquarium, hydroponics(test nutrients), pool and spa, etc.
• ✔3 YEARS WARRANTY. And we offer 90 days Money Back Guarantee if not totally happy with the digital TDS water tester meter.

User questions & answers

Question:	Can I use this ppm meter for hydroponics
Answer:	Yes . This is one of the intended uses :) Just please note it's for TDS (Total Dissolved Solids), not for pH. In hydroponics applications, a ppm meter such as this one is used to determine your nutrient count.
Question:	how can i test if the unit is accurate could i use distilled which i assume should be zero, thanks tom
Answer:	Thanks for your question. This TDS meter is pre-calibrated in factory, no need calibrate again by customer, we do this to prevent as many calibration related mistakes as possible, and it's easier to use. To maintain the accuracy, it's better to rinse the probe with distilled water after each use. For your mentioned distilled water, it should read 0 ppm theoretically, but in actual application, if you can't keep test condition very clean, it may read 0-2ppm usually.
Question:	Can this also check for ph
Answer:	It Does not. It measure TDS , EC and Temperature 3 in 1. PH Meter is another tester.
Question:	What kind of battery does it have
Answer:	1 x 3V button battery CR2032 , it's included in the water tester. Sincerely hope you enjoy the products we sell on Amazon!

Product features

Super accurate, reliable and easy to use TDS, EC &Temp water tester reader, with backlit and auto-lock function.

This advanced digital ppm meter pen with Advanced Microprocessor Technology, combines TDS Meter(Total Dissolved Solids), EC Meter(Electrical Conductivity) and Temperature meter all in one ergonomically designed pen.

Widely be used for all Water Quality Testing, Water Purification Applications, Aquaculture, Hydroponics, Pool & Colloidal Silver, Water Treatment and more.

It’s a must have handy tool for every household, testing for tap water, filtered water, distilled water, bottled water, well water, refrigerated water, etc.

Features:

• Automatic Temperature Compensation(ATC)
• Equipped with backlit LCD for easy reading. If TDS≤40, the backlit color is green, If TDS>40, the backlit color is red.
• Auto-Lock Function: From test beginning, the reading can be stabilized in seconds, and locked automatically for easy read and record.
• Hold Function: Before reading locked automatically, the reading can be locked manually if press “HOLD”.
• Factory Calibrated: No need calibration by user.
• Auto-Off in 2 Minutes to conserve battery.
• A colorful TDS chart on the back to explains ppm readings.
• Includes a protective carrying case with belt clip, easy to carry.

Product description

Product Features:

Multifunctional water quality tester, which can test PH, TDS, and temperature of the water.

Accurate AND Reliable: To achieve high accuracy, pH Meter equipped with premium quality titanium alloy probe, and reliable Automatic Temperature Compensation (ATC) ensures reading always be test the PH value for any 0-14PH liquid which you wanna test, and accurate at various temperatures.

Easy and Instantly: Just turn pH meter on and stir water gently, then stabilized readings will be showed on LCD in seconds, and the tds ppm meter will shut off automatically if without operation over 5 minutes.

Hold Function & Auto-off function: Freeze the measurement to view it out of the water. Turns off meter after 5 minutes of non-use to conserve batteries.

Wide Use: Pocket Size TDS PH Meter is the ideal test kit for home and laboratory uses.Compact pen-shape design, lightweight, you can test water anywhere to get the purest water. Ideal use to test for water, pools, aquariums, spas, hydroponics, food, wine and beer making and more.

Measurement range:

TDS: 0-1999ppm, 0-19.99ppt

PH: 0.00-14.00pH

Temperature: 0-60 ℃ / 32-140 ℉

Resolution:

PH: ± 0.01PH

TDS: ±  2% F.S

Auto-off: 5 minutes

Operating temperature: 0 ~ 60 ℃

Description: 

Item Name: Water Quality Tester

3 in 1, Easy to Read, Portable

Material: ABS

Auto Power-off: 5min

Battery: 3 x 1.5V LR44 Battery (Include)

Calibration: 3 Points (9.18, 6.86, 4.01) Calibration

Size: 18.3cm x 3.7cm x 3.7cm/7.2" x 1.5" x 1.5" (Approx.)

How to make a standard solution to calibrate?

Completely empty the powder into a clean 250ml glass beaker.

Add 250ml of PH Buffer Powder to the beaker.

Still until the powder has completely disso

• 3-in-1 pH Meter - pH meter has a three-in-one function, which can measure PH, TDS and temperature with high precision at the same time. All-round measurement of water quality to ensure healthy water quality.
• Automatic Calibration pH Tester - With high sensitive glass probe, you can get a full measurement range of 0-14pH, 0.01 pH resolution. And pH meter uses a 3-point calibration method, calibrating the electrode to solutions of pH 4.00, pH 6.86, and pH 9.18,You can calibrate effortlessly to ensure the accuracy of your measurements.
• High Accuracy Water Tester - High-accuracy algorithm chip and electrode of our digital water ph tester ensure accurate and fast response. Green Backlit LCD Design guarantees that you can read the measuring results in any condition.One-button lock reading function helps lock reading even if the tester is taken out of the sample!
• Automatic Temperature Compensation pH Meter Digital - No longer need to pay attention to the temperature of testing liquid, meter can accurately determine the pH value of the sample in the temperature range of 0 °C-60 °C (32 °F-140 °F), so as to solve the inaccurate problem caused by changing the liquid temperature.
• Pocket Size pH Tester Kit - You can use this Pocket Size small but powerful Pen Tester, device to measure your aquarium, pool, pond in a garden, bath tub to test the levels of Ph value, It can also be used to measure drinking water, RO System, spa, soap mixtures, food, wine, beer or any other liquids.

User questions & answers

Question:	Can you use this to test the wash or mash on undistilled spirits
Answer:	It's not heavy. Relatively light. But it's a nice mat. We're happy with it. FYI ..we ordered the mat with the helmet and received Ragnar on it.
Question:	Is the meter water proof
Answer:	26 inches long and 42 inches wide.
Question:	I use this ph meter once a month. do i need storage solution for the probe
Answer:	It's the Philadelphia Eagles, we have been trying to get Amazon to fix this issue and they seem to have a problem changing it. Not sure if they will let this link show up but it's a link to the page that is actually correct for the item. It has the vendors to purchase from. I am on there as well Where The Fans Shop. http://www.amazon.com/gp/offer-listing/B007TDONGS/ref=dp_olp_new?ie=UTF8&condition=new
Question:	How often do users have to calibrate this meter and how accurate is it
Answer:	Yes. Protect your deck or patio while displaying your favorite team! These 100% Vinyl Grill Mats are a universal fit to most grills, prevents spills from soaking in and staining, and cleans up easily with a garden hose.

• Soil pH measuring range : 3 - 8 pH
• SOIL PH TESTER. Helps you measure and control PH level in soil
• Accuracy : ± 0.2 pH
• EASY TO USE! No need or preparation; you simply plug the probe of our soil testing tool in the soil area you want to check and get an accurate and precise reading! Find out what your garden or lawn needs with our soil test kit
• NO BATTERY REQUIRED. No batteries or electricity needed, plug and read

User questions & answers

Question:	How deeply does the probe have to be inserted to work? I have a plant in a 2-inch-deep container
Answer:	We would like to recommend you another model(ZD-05) below if you want to test the soil in a 2-inch-deep container. ASIN:B00SY6GUEC URL: https://www.amazon.com/dp/B00SY6GUEC?ref=myi_title_dp
Question:	Is the probe shaft steel, or Al/Cu? Had problems with other probes bending
Answer:	Not steel, probably Al/Cu but I don't think bending would be a problem if your soil isn't TOO hard or you don't push against a rock.
Question:	I find it interesting that the positive reviews, on this product, are really, really good, while the negatives are really, really bad. Any thoughts
Answer:	I think that many fewer people with good experience participate in opinions and ratings than those with bad experience. I can only say I’m happy with mine. It works as expected and is much easier to read than my previous meter. Side by side, they both read very close to the same.
Question:	Does it come with a list of plants and their watering needs??? Once I know the moisture around a plant, how do I know what that plant needs
Answer:	I've been an avid gardener for 45 years. Even though I have a vast knowledge of plant material, this question cannot be answered without knowing plants in general. You'd have to have 1000's of volumes of plants listed with requirements from all over the world, with varying climate zones.

Product features

Great for Quick Ph and Moisture Reference in the following uses.

Soil test may refer to one or more of a wide variety of soil analysis conducted for one of several possible reasons

Soil test may refer to one or more of a wide variety of soil analysis conducted for one of several possible reasons. Possibly the most widely conducted soil tests are those done to estimate the plant-available concentrations of plant nutrients, in order to determine fertilizer recommendations in agriculture.

Excellent nutrition is necessary to grow plants successfully

• Metal Electrode : 295mm
• Extra long 295mm metal electrode
• Soil pH measuring range : 3 - 8 pH

Soil pH is one factor to examine in order to develop plant nutrition.

• Soil Moisture level : 1 - 8
• Accuracy : ± 0.2 pH
• Operating temperature : 5 - 50°C (41-122°F)

Our soil pH meter test kit exactly doing this with the highest accuracy

• Self-Powered, no battery is needed
• Accurate and reliable

Do-it-yourself-kits!

Soil is 'just dirt' only when tracked indoors or found behind the ears of healthy offspring.

.It’s impossible to tell if the soil is healthy just by looking at it, you have to use some type of soil testing