3 best portable gas detectors

• Detect Various Flammable Gases: Portable Natural gas sniffer and tester is used to locate exact gas leak for various combustible gas, such as methane, natural gas, propane, LPG, sewer gas, coal gas, gasoline, other flammable gases
• Detection Range: Approximately 50 to 10,000 ppm (Based on Methane), instant response once encounter leakage points
• Easy-to-Use Gas Leak Detector: Powered by 3 AAA batteries (Not included), 12 inch bendable gooseneck can locate and detect the gas leaks even in hard-to-reach areas at home & VR, kitchen and fireplace etc., refer to “How and Where to Use the Y201 Combustible Gas Detector” video
• Sound and Visual Gas Alarm: Six red LED’s (visual) and 85dB audible alerts once encounter gas leakage along pipeline or around the suspected leakage points
• Original Design and Lifetime Technical Support: Design patent and certifications are applied to make sure the product quality and uniqueness. Replacement and friendly customer service are available even it’s broken in 24 months.

User questions & answers

Question:	is it precise
Answer:	Yes ours came with the headgear
Question:	Is any detection of gas harmful? My apartment supposedly just fixed its gas leak, but this is still showing the first level red light within my apt
Answer:	Don't know the max size. I wear a 7 3/4 hat and this fit fine. There is a minimal amount of adjustment left.
Question:	Do I need to replace the sensor after 2 years to keep this working? Or, is the unit useless after about 2 years? I read the sensor tip has a lifespan
Answer:	These type of hard hats is varies but it is fiberglass though. The color can be light to mid dark brown. They ship me with a light brown one. I was surprised it was very light, it was thin. Just be careful when buying from Warehouses. They say they will give you a new ratchet suspension but they never did. So be aware of that and if it happen they won't ship you a new one, they will ask you to reship it back and buy a new one, hopping you will receive the hard hat with the suspension but NO GUARENTEE. But to answer your question, yes it does look like that, but remember it varies on the seller because it come from a warehouse.
Question:	I don’t understand after it warms up how to detect gas ? Do I move the button until it stops ticking and no alarm? I move + and alarms sounds
Answer:	Front brim, ball cap style.

Product features

Techamor Portable Gas Leak Detector/Sniffer - Y201

The Y201 portable sniffer is an easy-to-use device that provides sound and visual alarm in presence of methane, propane, such as LPG, fuel and natural gas.

It’s mainly used to find and locate exact gas leak point along gas pipeline, around fittings or connectors at home & VR, and other similar applications. Helps to save hundreds of diagnostic fees from technician or plumber, and makes it's possible to debug gas leakage anytime by DIY.

For 24h gas monitor and detection, refer to Y301 and Y302.

2.1 Warm up process: around 10s

The speaker will always have “di didi…” until we turn off device, except one moment in step 2.2. At warm up period, ticking noise frequency is slow: around 2~3 times/s.

The knob is used to adjust sensitivity of detector after finish 10s warm up process, during the process, no matter how to adjust the knob, the device won't have any reactions.

2.2 Rotate the knob to adjust sensitivity

If the alarm sounds prematurely and LED lights are on after warm up, need to decrease sensitivity to prevent false alarm (dial downward "-", shown as red arrow) .

Rotate the knob to adjust sensitivity until the first bottom LED turn off or at the threshold of lighting up, and the moment that ticking sound stops. This is the best status.

But if it's inconvenient to get the best status, we can just make the first bottom LED be on and have slow ticking "di di...." sound. Because once encounter leakage, all the rest 4~5 LED will be triggered on together at just one moment.

2.3 Ready to sniff or trace leakage

Move the probe along pipeline or around the suspected leakage points, such as fittings, connectors and switches, once encounter gas leakage, all 5~6 LED lights will be triggered immediately and the low frequency (2~3 times/s) ticking will change into piercing sounds (frequency 6~7 times/s, too fast and human ears cannot distinguish one time by one time) .

3. Different Usage Pictures Collection from Lovely Customers

4.1 Could tell more related to use?

1) Easy to understand video will be good choice, refer to “How and where to use the Y201 gas leak detector” around pictures area at beginning . 2) Get service support, engineers on staff from factory online will help to answer any questions related to leakage if above video can't help to understand.

4.2 Why always has ticking sound?

The design of ticking sound has two purposes: 1) Indicates the device is working.For some cases, we need to extend the probe to the area that we can't see LED lights, customers could judge thru the sound changes. The green power LED light is also used to indicate the device is working. 2) Represent different levels of gas leakage. Low frequency (around 2~3 times/s) means warm-up period or no leakage, if changed into high frequency (around 6~7 times/s) during detection process, means encounter leakage issue.

Notes: above is based on we set sensitivity well, because if we rotate the knob at anti-clockside too much, even there don’t have any leakage, all the 6 LED will be triggered on and sound will become piecing high frequency.

4.3 Some batteries only use 10~15 minutes, then low battery indicator is on.

According to our experiment data at lab for different batteries brand, usually last from 15 minutes to 4 hours. Different brand batteries have very different quality. Indeed, the device is hungry for batteries. The sensor in the probe needs large power for micro burning process and we can feel a little warm if we use finger to hold the probe. Another reason maybe product itself, components (resistor, capacitor......) tolerance or damage on the PCB board may also lead to large power consumption, but the rate is very low.

Usually when we find customers from home inspection company, we will suggest purchasing rechargeable Li-batteries, because their technicians or plumbers use the device frequently and Li-batteries will help to save some batteries cost.

4.4 Is it normal or safe if get 1 red bar when move to high moisture room, around connectors or simply blow on probe?

Don't worry, it's normal, the large moisture change and CO affect the sensor performance, and may lead to false alarm by 1~2 LED red bars, but only last for 1~3s (very short time) if we move probe away. If we encounter leakage along the pipeline or connectors, all 5~6 LED bars will be triggered on at one moment, light and piercing sound alarm will last at least for 6~8s.

4.5 what's best distance between probe and pipeline/ranges/connectors.... during check process?

Recommend 1~10cm, if too far, concentration will become smaller as distance increase from leak point, and maybe not enough find and locate tiny leakage.

4.6 How about bubble method to check leakage compared with Y201?

Bubble is very good way and can be used to check all kinds of gas leakage while Y201 is mainly used for combustible gas. But for very tiny leakage and very strong leakage, bubble method maybe not good enough: 1) too tiny leak can't blow up bubble, too strong will blow the liquid away and can't have bubble, 2) some areas we can't extend to apply bubble liquid, 3) need good luck and skills to control the bubble liquid concentration if DIY bubble liquid, 4) in some case, liquid contact may lead to equipment or device damage.

The best way is: use both methods for double confirm if allowed, since bubble is more visible.

Product description

As the only US based retailer of this Yeezou Y201 gas detector, we provide expert support with our chemist on staff to answer any technical questions. Buy confidently; this device is covered by EG Air's lifetime replacement guarantee. Also included/emailed is a 20+ page eBook on Gas & Air Quality Hazards.



FIND GAS LEAKS AT HOME:

Find the location of any natural gas, propane, LP or fuel leaks by running sensor probe along a gas pipe, fuel line, or fittings near any gas smells. Pinpoint fuel leaks from your lawnmower or car. Gas leak is found when alarm sounds and LEDs light up. Don't pay a technician's $100+ diagnostic fee when you can find a gas leak anytime with this propane & natural gas detector.



STEPS/TIPS ON USE: (see video at https://www.amazon.com/vdp/17873f5854174d4db2087794a60238be)

-To detect leaks while minimizing false alarms, turn the sensitivity dial upward toward (+) until the device begins to alarm away from any gas leak. Turn sensitivity dial downward (-) slightly until alarm stops and 1st LED just turns off. Now, any small increase of gas level (as from a leak!) will cause the alarm to sound.

-If alarm sounds prematurely, sensitivity needs to be decreased to prevent false alarms.

-Each leak varies in leak rate and background gas concentration, so adjust sensitivity level to find any leak.

-Allow device to warm up sensor for 10s until yellow “Warm Up” light turns off.



SPECIFICATIONS:

Maximum Sensitivity: 50 ppm

Alarm range: 0.1%-40% LEL

Warm up time: 10s

Response time: ≤2s (10% LEL)

Alarm: Visual with 6 Red LEDs, Audio with Variable Tone Frequency

Power: 3 AAA batteries



Package Includes:

-Gas Leak Sniffer

-Manual

-Protective Bag

• A GAS DETECTOR FOR MOST EVERY COMBUSTIBLE GAS: Locates the source of explosive gas leaks including natural gas or methane, propane, fuel including gasoline or kerosene, sewer gas, alcohol, butane, coal gas, ethane, toluene, and other flammable gases.
• PORTABLE & FLEXIBLE GAS LEAK DETECTOR: Powered by 3 AAA batteries, this portable gas detector sniffer can be taken anywhere to find gas leaks indoors or outdoors. Bend 12-inch length sensor neck in any direction along gas pipes or fuel lines in confined spaces to find gas leaks.
• VISUAL / AUDIO GAS INDICATORS: 6 LEDs with 85dB tonal alarm notify users of gas leaks and relative concentrations of natural gas & propane.
• ADJUSTABLE SENSITIVITY: Increase sensitivity dial to find small gas leaks. Decrease sensitivity to find larger explosive gas leaks while filtering out false alarms from background gas levels. If alarm sounds when turning on detector, sensitivity needs to be decreased toward (-).
• LIFETIME USA WARRANTY + ORIGINAL DESIGN: As the only US retailer of this item, we stand fully behind this product and will replace it if it ever breaks! We have a Midwest-based chemist on staff to answer any technical questions. Also included is a 20+ page eBook on Gas and Air Quality Hazards.

User questions & answers

Question:	is this detector constantly plugged in like smoke detector
Answer:	I suspect it can. If you have wind conditions of course that would affect how much gas the detector would pick up but if it was close enough to the source it should work
Question:	How often should a gas detector be replaced? Every 5 years
Answer:	No. LPG, natural gas, and town gas, according to the instructions.
Question:	Is the alarm constant until the situation is addressed
Answer:	I looked at the instruction manual and the box and it doesn't say anything about being UL listed. It is built in China but I don't know if that has anything to do with what is or isn't UL listed. Sorry I couldn't help more.
Question:	Can I use with a battery
Answer:	Hello, this product does not detect carbon monoxide, please pay attention when buying. Propane cannot be detected, but methane can be detected.

Product description

DESCRIPTION

This 4-in-1 gas detector is the right choice to protect you and your family's health and property

Our multi-gas detector used advanced integrated circuit technology, embedded microcomputer control, high-tech imported gas sensor, excellent sensitivity, and repeatability.

The 4 gas detector is widely used

Applicable Occasions and Crowds:

Robust for industrial use for utility workers, refinery workers, firefighters, maintenance engineers, those who spend time in sewers and waterworks, underground storage tanks, oil rigs, in tanks and silos in the maritime industry, and many others who need personal protective equipment

It is necessary to safely monitor toxic and harmful, anti-explosion industries and places. The portable 4 gas detector can effectively predict the alarm of dangerous gas concentration, ensure the safety of the workers are not threatened, and the production equipment is not damaged.

 

Product Parameters

Comes Factory Calibrated – ready to use

Display Error: ≤ ± 5% FS

Response Time: <30s

Working Environment: -20 ℃ ～ 50 ℃, <95% RH (no dew)

Power Source:DC 3.7V Li-on battery, 1800mAh

Protection level: IP65

Gas Sensor Life: 2 years

Protection Grade: IP65

Weight: 230g(with battery)

Dimensions: 140 mm × 73 mm × 32 mm (L × W × H)

Charging time: 4h-6h Standby time, Continuous use for more than 10 hours at a full charge

Indication mode: LCD real-time data and system status, lighting, vibration and live voice recording (Chinese and English) tips

Packing list:

1 * Detector

1 * User manual

1 * USB cable

1 * plug.

• Wide Application Easy Carrying Around: This multi-gas monitor detector comes with a super nice padded case with compact size and clip design. Easy to use with a clipping right on your cloth and keep your safe the entire time while working in confined space, effectively predicting as to ensure the safety of the environment.
• High Sensitive and Accurate Measurement: The portable 4 gas detector with high quality imported gas sensor, excellent sensitivity and excellent repeatability, Comes FACTORY CALIBRATED. Open and use directly.
• Three Alarm Methods: The portable gas detector is ready to use, comes with adjustable audio, visual, and vibration alarms alert when preset levels are reached. Can accurately measure the gas concentration with easy-to-read number shown on the display.
• Waterproof,dust-proof, explosion-proof and lower error: Detection error better than ≤±5% F.S. and response time: T<30s. Zero and span calibration options. Long capacity 1800mAh battery for long continuous working time.
• 【100% Satisfied Warranty】2 YEARS LIMITED WARRANTY, If your gas detector has any quality problem, please contact us by Email. we will give you a SATISFACTORY SOLUTION.

User questions & answers

Question:	How often does this unit have to be bump tested and/or calibrated
Answer:	Hello dear friend, this unit have to be calibrated in about 6-12 months. If it's usually in a harsh environment(high temprature or high humidity ), you should appropriately shorten the calibrate time interval.
Question:	how to do a calibration check
Answer:	Use 4 standard concentrations of gas to calibrate separately Steps: 1. Input password to enter the menu 2. Select "Cali Gas" 3. Calibration of the 4 gases separately, the following are the calibration values of the four gases H2S: 45 PPM CO: 200 PPM LEL: 25% LEL O2: Oxygen use nitrogen to marked with zero, and pure nitrogen is 99.999%.
Question:	hello I want to know if this detector detects the quality of oxygen for mountaineer
Answer:	Hello friend, it's suitable for mountaineer to detects oxygen.
Question:	what range of oxygen can this monitor detect
Answer:	Our monitor can detect oxygen in the range of 0-30%, Can detect higher than 21% oxygen, Can be used for scientific project detection. The range on this device for these gas are: EX: (0-100)%LEL, low alarm: 20% LEL, high alarm: 50%LEL, resolutio:1%LEL. H2S: (0-100)ppm, low alarm:10ppm, high alarm: 35ppm, resolutio: 1ppm, CO: (0-1000)ppm, low alarm: 50ppm, high alarm:150ppm, resolutio: 1ppm, O2: (0-30)%vol, low alarm: 19.5%vol, high alarm: 23.5%vol, resolutio: 1%vol