13 best refrigerant leak detectors

• Freon leak detector triggers on R22, R134A, R404a, R410A and all halogenated refrigerants including HFCs, CFCs,HCFCs and blends.
• Response within 3 seconds; Warm up in 6 seconds.
• 7 Adjustable Sensitivity; Maximum sensitivity is 0.21oz/yr.
• Audible and visual gas leakage indicators and dual battery indicator.
• A flexible probe around 7.9-inch allows detections in difficult and hard-to-reach areas. 24/7 US Technician Support via Email and Phone.

User questions & answers

Question:	Can it detect propane leak
Answer:	Yes it can detect propane leak.
Question:	Will this unit detect R421a
Answer:	The product packaging specifically indicates it will detect R134a, R410a, R12, R22 and R600a (and I've only used mine for R134a), but I'm guessing it'll work with pretty much any commonly used CFC-based refrigerant.
Question:	The sensor seems not to work, how can I detect by myself
Answer:	Four steps: 1. light a lighter 2. Blow the lighter out 3. Move the detector near the lighter 4. Observe whether the detector will give alarms. If it sirens, then it proves the detector work.
Question:	Will this work on a car freon
Answer:	yes

Product features

Traditional Corona Sensor

It will respond to all halogenated. This includes, but is not limited to:

• CFCs e.g.R12, R11, R500, R503 etc.
• HCFCs e.g. R22,R123, R124,R502 etc.
• HFCs e.g. R134a, R404s, R125, R1234yf etc.
• Blends such as AZ-50. HP62. MP39 etc.

Short Preheating Time

• Once the switch rotated, the detector will be ready to use.
• Preheating time: 6s
• Response time: 3s

Notice: Wait for 6 seconds away from the potential leakage area once the leak detector is switched on for more accurate detection or it may not give right alarm when you try to detect.

7 Adjustable Sensitivity

• 1-7 Grade selectable sensitivity
• Maximum sensitivity is 0.21oz/yr
• smaller leak, higher sensitivity grade
• More refrigerants, more rapidly beeps, faster indicator flashes
• Note: 2 beeps per second when the detector is open, 10 beeps per second when leak is detected)

Audible and Visual Alerts

• LED light flash alarm
• Buzzer alarm
• Dual-battery indicators

Green-the battery voltage is normal, suitable for the job.

Orange-the battery voltage is close to the limit work, need to be replaced asap.

Flexible Probe

• Around 7.87-inch flexible probe
• Allows detection in difficult and hard-to-reach areas.

4AAA Batteries

• Battery life: about 50 hours

Leak Detector equips with:

• Compact design
• Portable black bag to carry and storage
• Note: batteries NOT included

Technical Parameters

Product description

The SRL8 Heated Diode Refrigerant Leak Detector is designed exclusively to make the HVAC/R Technician's job easier, faster, safer and more efficient. We set out to develop the best heated diode leak detector for HVAC/R. We believe the SRL8 is it. It comes in kit form in a rugged, blow-mold case with all of the extras you don't get from the other guys.

• Triggers on all CFCs, HFCs, HCFCs and blends. More sensitive to some refrigerants than others.
• 15-hour rechargeable, user replaceable battery. It lasts almost two full workdays on a single charge (if your hunting down leaks all day). You can also use it while it's hooked up to the wall or vehicle charger.
• Filter system helps protect the sensor from moisture and other contaminants. The sensor is connected to the body at the other end of the snout. The filter is at the tip of the snout. If you accidentally hit some condensation or oil, the filter swells, shutting off the pull to the sensor and protecting it from failure.
• Manual or automatic zeroing. It auto zeros every two seconds until a leak triggers the sensor. After that you can manually zero the detector to help further pinpoint leaks.
• Up and running in 30 seconds. Some heated elements and corona discharge units take much more time to warm up. UV dyes can take several hours to travel through a running system and can degrade system components.

User questions & answers

Question:	Does this measure CO
Answer:	No it only detects refrigerants.
Question:	Does this detect r290 ? Thanks
Answer:	No it won't, you will need a one that can pick up propane and butane. True branded reach in freezers has a kit you can request that has it.
Question:	Amazon ,this is for you ,,,on the product description you must include country of origin. i want to know if this is chinese made junk
Answer:	I am not Amazon. I am a consumer, and of course, it isn't made in the US. Sadly, near nothing is any more. It is made in Taiwan. Fieldpiece apparently recognizes consumer push-back since they say, "Designed in the US. Made in Taiwan."
Question:	Hello this equipment detects R12, R134A and R
Answer:	I would say yes I've had a hard time detecting r22 I used my other leak detector to find it

Product description

Affordable price, simple operation, and reliable performance make TEK-Mate the refrigerant leak detector of choice for thousands of technicians. See for yourself why TEK-Mate is the #1 selling refrigerant leak detector in the HVAC/R market.

• Sensitivity of 0.25 oz./year (7 g/year)
• Detects all CFCs, HCFCs, HFCs, and HFOs. A2L Certified
• Proven heated diode sensor for reliable leak checking
• Sensor Life: 100 hours
• No false alarms from soap solutions
• Automatic background adjustment ("zeroing")
• Runs on two D-cell alkaline batteries

User questions & answers

Question:	Does it detect r507 gas
Answer:	have not used 507 but understand it is a hfc blend so should work fine. have used it with 502 a few times with good results.
Question:	Does this have a built in pump
Answer:	Yes it has a pump. I used it today, found the leak. Im very happy with this leak detector.
Question:	Would this be a good tool for the automotive technician for r134a or is there a different tool suitable for the automotive technician for r134a
Answer:	Perfect for 134a Any cfc hfc or hcfc. 134a is a hfc refrigerant. I have had many leak detectors over the years and found this to be the best, so far
Question:	how much does a replacement sensor cost
Answer:	the sensor is already installed

• With the latest and most innovative infrared sensor, its sensor life extends enormously for a maximum of 10 years. It triggers on all halogenated refrigerants much more precisely than traditional corona sensors and moderate heat-diode sensors.
• 3 Selectable Sensitivity Levels -High/Medium/Low; With a maximum sensitivity up to 0.14oz/yr.
• The world's first TFT screen advanced leak detector animates leakage, sensitivity, battery levels and sensor faulty indicators and presents more clear and easy readings.
• Pressing PEAK button to mark the maximum leakage value during measurements.
• Responds to all kinds of halogenated refrigerants and meets EN14624, SAE-162, SAE-2791 and SAE-2913 standards.【Free return or exchange within 3 months!】 24/7 US Technician Support via Email and Phone.

User questions & answers

Question:	Does it works with any refrigerant
Answer:	It works with most kinds of holagenated refrigerants, but not as sensitive to HCs as others and it can not detect CO2 either.
Question:	The manual says the battery is not replaceable. Can you send it back to Elitech to have a new battery installed
Answer:	I'm uncertain if that is correct. I am of the belief that it was.
Question:	Does it work for r134a
Answer:	Sure, it works for R134a
Question:	When changing this unit is it 220v
Answer:	It is with a built-in rechargeable lithium battery 3.7V 3000mAh.

Product features

ILD-200 Portable Infrared Refrigerant Leak Detector

ILD-200 Advanced Refrigerant Leak Detector is designed exclusively to make the HVACR Technician's job easier, faster, safer and more efficient. We set out to develop the best refrigerant leak detector for HVACR. The Six-hour battery life lets you work all day before recharging. The sound and light alarm allows you to work the way you want to work. This infrared leak detector allows it to detect even the most difficult ones like R-134a, R-404A, R-407C, R-410A and 1234yf refrigerants. Our exclusive solid electrolyte sensor technology reduces heat and gives the sensor a longer life than traditional heated diode or corona detectors.

TFT Screen

The first TFT / LCD infrared leak detector:

• Easy and clear readings
• Animated sensitivity indication
• Animated screen alarm indication
• Real-time battery allowance display

Sensitivity Adjustable

When the detection result is not stable, lower the sensitivity level to adapt to the environment.

• 3 Selectable Sensitivity Levels -High/Medium/Low
• Maximum sensitivity up to 0.14oz/yr
• Suitable for all detection scenario
• Smaller leak, higher sensitivity grade

Peak Function

The first TFT / LCD infrared leak detector:

Pressing PEAK button to mark the maximum leakage value that is achieved during leakage detection

Get faster to find the largest leakage point in the complex working environment

Mute&Earphone Function

With earphone port, suitable for detecting even in a noisy environment

Flexible Probe

Flexible Probe Allows detection in difficult and hard-to-reach areas

Replaceable filters to keep clean of the sensor

Advanced Sensor

Compared to traditional corona sensor, ILD-200 adopts the most advanced sensor:

• 10 Years' sensor life
• Strong anti-interference
• Wide range and sensitive reaction
• Detects all halogenated refrigerants
• Meets EN14624,SAE-162,SAE-2791 and SAE-2913 standards.

More Refrigerants

Respond to all halogenated (contains Chlorine of Fluorine) refrigerants.

• CFCs e.g.R12, R11,R500,R503 etc.
• HCFCs e.g. R22,R123, R124,R502 etc.
• HFCs e.g. R134a, R404s, R125 etc.

AUTO RESET

Automatic Self Calibration within 3s

• Reset to max sensitivity in clean air
• Reset to current sensitivity in refrigerants environment to detect higher concentration leakages

• An upgraded version of WJL-6000. Traditional corona sensor with an updated analogue circuit, fast triggers on R11, R22, R134A, R404a, R410A and all halogenated refrigerants including HFCs, CFCs, HCFCs and blends.
• Response in 3 seconds; Warm up in 6 seconds.
• 6 Adjustable Sensitivity with max. sensitivity of 0.21oz/yr.
• Direct status indication with audible & visual leakage alarm indicators and dual-color battery indicators.
• Meets EN14624 and SAE-1627 Standards, 24/7 US Technician Support via Email and Phone.

User questions & answers

Question:	Does this do Nat. gas leaks and LP
Answer:	Sorry, it just detect refrigerant leakage.
Question:	Does this detect leaks in r12a systems (propane/butane
Answer:	The device detects R12 not R12a.
Question:	I hear drips near my ac. the sensor beeps when put into insulation near my ac. does it always beep when placed in insulation
Answer:	It will always beep letting you know it is working. But it will beep really fast when it dectics Freon. If your not sure if it is working take a nail be very careful put the nozel next to the ac line check valve and push the valve in untill gas comes out when it starts beeping really fast you know it works and what it should sound like
Question:	can it detect hydrogen leak
Answer:	In the Q&A section of product mentioned scroll down to it and the company rep. says it will not detect hydrogen.

Product features

CLD-100 Portable Halogen Refrigerant Leak Detector (Corona Sensor)

Elitech CLD-100 Halogen Leak Detector is used to detect leaks in HVAC systems and storage/ recovery containers. It will respond to all halogenated (including Chlorine and Fluorine) refrigerants. It can also detect halogen gases in fire-extinguishing system.

Upgraded Leak Detector

• Upgraded detector on WJL-6000
• Traditional corona sensor and analogue circuit design

It will respond to all halogenated. This includes, but is not limited to:

• CFCs e.g.R12, R11, R500, R503 etc.
• HCFCs e.g. R22,R123, R124,R502 etc.
• HFCs e.g. R134a, R404s, R125 etc.
• Blends such as AZ-50. HP62. MP39 etc.

Short Preheating Time

• Once the switch rotated, the detector will be ready to use.
• Preheating time: 6s
• Response time: 3s

6 Adjustable Sensitivity

• 1-6 Grade selectable sensitivity
• Maximum sensitivity is 0.21oz/yr
• Lower sensitivity grade when unstable detecting results
• Higher sensitivity grade when leakage are smaller.

Audible and Visual Alerts

• LED light flash alarm
• Buzzer alarm
• Dual-battery indicators
• More refrigerants, more rapidly beeps, faster indicator flashes

Industry Standards

• Meets EN14624 standard
• Conforms to SAE-1627

Flexible Probe

• Around 7.87-inch flexible probe
• Allows detection in difficult and hard-to-reach areas.

4AAA Batteries

• Powered by 4AAA Batteries
• Notice: They are not included in the package

Easy to Carry

• Compact size
• Portable black bag to carry and storage

Specifications

Product description

Specification:

Sensor principle: infrared sensor + heating diode sensor

Sensor life: 10 years for infrared sensor, 2 years for heating diode sensor

Accuracy: 4g/year

(3 levels of infrared sensitivity adjustable, 1000 levels of heating diode automatic adjustment)

Display: TFT screen

Detectable refrigerants: R32, R1234yf, HFCs, HCs and other latest refrigerants

Comply with standards: SAEJ 2791, SAEJ2913, EN 14624, CE

Power supply: 2 removable rechargeable lithium batteries

Instruction:

Infrared heating diode 2-in-1 leak detector, suitable for various detection scenarios.

Using non-dispersive infrared detection principle: using a special infrared black body light source to emit high-intensity thermal radiation energy, the infrared wavelength is controlled in the range of 8-14um by controlling the filter; accordingly, the wavelength is absorbed by the gas and is in the receiver Minor changes occurred. The infrared receiver is used to collect, filter, zoom in, filter out interference data, and quickly locate the alignment point;

Principle of heating diode: Tin oxide semiconductor gas sensor with excellent performance for detecting trace gases. The ultra-small magnetic bead structure developed with unique technology consumes only 15% of the power consumption of traditional thick film types, and can be used at 120mW power. The sensor has fast response speed, long life, and 1000 alarm levels.

• With 2-in-1 infrared and heating diode sensors, its sensor life extends enormously for a maximum of 10 years. It triggers all halogenated refrigerants much more precisely than the traditional corona sensor and single heat-diode sensor.
• 3 levels of infrared sensitivity adjustable, 1000 levels of heating diode automatic adjustment; With a maximum sensitivity of up to 4g/yr.
• Notes on “Reset SENS” button under Heated Diode mode. Press the “Reset SENS” button in the clean environment to increase the sensitivity when the sensitivity is not enough; press the button to reduce sensitivity when the sensitivity is out of scale.
• Pressing the PEAK button to mark the maximum leakage value during measurements.
• Responds to all kinds of halogenated refrigerants and meets SAEJ 2791, SAEJ2913, EN 14624, CE standards.【Free return or exchange within 3 months! 24/7 US technician support via email and phone.】

Product features

Infrared Mode

• Higher leak concentration, higher the bars.
• Sensor life: 10 years
• 3 Sensitivity Level: HIGH(4g/year), MEDIUM(7g/year), LOW(14g/year)
• Press "PEAK" button to mark or unmark the maximum leak. If unmarked, the peak value will be cleared.

Heated Diode Mode

• Numerical refrigerant concentrations in current environment.
• Record the number of refrigerant concentrations.
• Sensor life: 2 years
• 1000 Automatic Sensitivity Level
• Press "PEAK" button to record the numerical concentration of refrigerant leak.
• Please move slowly during the detection.

Easy to USE

• Press MODE button to switch Infrared sensor and heated diode sensor
• Peak button to mark leakage level
• Rest SENS is to reset in heated diode mode and adjust sensitivity in infrared mode
• Press Mute button to mute the sound alarm

Rechargeable & Replaceable

• Please use DC 5V/1A power adapter to charge the detector.
• ·Charging indicator in Orange: the battery is charging now;
• Charging indicator in Green: the battery is fully charged.
• If the detector will not be used for a long time, please pre-charge it to prevent battery life reduction due to self-discharging. Do not store it for more than 6 months.

Advanced Design

High-performance sensor tip, avoid water ingress

UV Light

Push forward as the light for dark environment

Push backward as the UV light assist to locate the leakage range

Replacement Filters

5 replacement filters and sensor caps for maintenance of the leak detector

Flexible Probe

Flexible probe to use in difficult environment

Additional Sensor probe to extend the probe

• The Freon leak detector detects all kinds of halogen refrigerants including but not limited to R11, R12, R500, R503, R22, R123, R124, R502, R125, R134a, R404a R600a R290;
• Sensitivity adjusted at any time and the halogen leak detector can be adjusted automatically to the best state of detecting;
• Inner precise IC with ultra-low power consumption circuit design, more stable, longer battery life; Dual-color visual display of battery voltage;
• Excellent sensor, high sensitivity, long lifetime. Powered by: 4 x AAA 1.5 V batteries (batteries not included in the package).
• We offer 100% satisfaction guarantee and one year warranty

User questions & answers

Question:	are there replacement tips for this
Answer:	I am not sure, contact the manufacturer
Question:	Do you have replacement sensors
Answer:	no
Question:	Can this detect methane (sewer vent) leak
Answer:	No. Made to detect freon
Question:	will it detect propane
Answer:	This product can check all refrigerant gas.

• Excellent sensor with maximum sensitivity of 6gr/yr, the Freon leak detector detects all kinds of halogen refrigerants including but not limited to CFCs e.g. R11, R12, R13, R113, R114, R500, R502, R503 etc. HCFCs e.g. R22, R123, R124, R401A, R401B, R402A, R403B, R408A, R409A, R414B, R416A etc. HFCs e.g. R23, R134a, R404A, R407C, R410A, R417A, R422A, R422B, R422D, R507, R508B etc. Blends such as AZ-50. HP62. MP39 etc.
• Real time sensitivity, refrigerant Freon leak detector can be automatically adjusted to the best optimum detecting state
• Flexible probe can reach to almost any awkward corners or space; More stable gas leak detector with precise ultra-low power IC design
• Tricolor display of battery voltage; Siren sound and flashing light for the leak alarm indicator. Make sure to put 4 x AAA alkaline batteries in it. Please pull out the battery holder and install all four batteries
• We offer 100% satisfaction guarantee and one year warranty

User questions & answers

Question:	Does this reallly detect r
Answer:	No good
Question:	can it detect gas leaks from my home kitchen
Answer:	It would probably work on a fridge or freezer in a kitchen. It might detect a propane leak (R290), but probably not natural gas leaks.
Question:	Does this unit detect r
Answer:	Yes. It does.
Question:	Does this work with r407c
Answer:	That is a hit or miss. I use it at work on many 407c systems and can usually pick up 407, but there is a lot of science behind why you may not be able to pick up a 407c leak. For example 407c along with all 400 series refrigerants are actually a blend of other chemicals. Each of those chemicals boil off at different temperatures. If your system has been leaking bad enough for long enough some of the chemicals the make 407c could now be gone and the ones left behind may not be detected by this detector. Best of luck to you.

Product features

Description:

LotFancy Freon Leak Detector detects all kinds of halogen refrigerants including but not limited to:

• CFCs e.g. R11, R12, R13, R113, R114, R500, R502, R503 etc.
• HCFCs e.g. R22, R123, R124, R401A, R401B, R402A, R403B, R408A, R409A, R414B, R416A etc.
• HFCs e.g. R23, R134a, R404A, R407C, R410A, R417A, R422A, R422B, R422D, R507, R508B etc.
• Blends such as AZ-50. HP62. MP39 etc.
• A2Ls

Wide Application:

1. Detects Ethylene Oxide gas leaks in hospital sterilizing equipment.
2. Detects SF-6 in high voltage circuit breakers.
3. Detects halogen gas and most gases which contain chlorine, fluorine, and bromine.
4. Detects cleaning agents used in dry cleaning applications.

Specification:

Flexible Probe:

• This Freon leak detector is designed with corona sensor so the probe should be very close to the gas leak area. Allows detection in difficult and hard-to-reach areas.
• Automatic Circuit: when the detector is in a measuring state, the automatic circuit will follow the changing level of halogen gas to avoid false alarm.

Real time sensitivity

• 7 Adjustable Sensitivity
• Refrigerant Freon Leak detector, with precise ultra-low power consumption IC design, can be automatically adjusted to the best optimum detecting state.
• LotFancy refrigerant Freon leak detector features an automatic circuit and a reset function that set itself to ignore the ambient level of Halogen gas.
• Reset： The leakage detector, upon initial switch-on, can automatically adjust itself to ignore the present level of Halogen gas in 6s and enter into the best state of detection. Place the sensing tip near a known leakage area and switch on, it's easy to find a higher concentration of leakage. Or move to the fresh air and turn on, adjust to the maximum sensitivity, any concentration above zero will be detected.

Leakage Warning

• When the gas leakage are discovered, "di di" sound will become more hurried. More refrigerant freon leak, more rapid. Meanwhile the indicator light flash quickly.
• The detector will beep regularly at a slow frequency when turn it on. If leak detected, it will beep in a higher frequency. (2 beeps per second when the detector is open, 10 beeps per second when detect the leak）

Notes:

Simple Operation Instruction

• Install 4 x AAA battery
• Turn the knob clockwise to turn on the leak detector, after 6 seconds, it turns into stand-by mode and begins to beep regularly. Then you can start detecting the leak.

Product description

General descriptions:

Elitech WJL-6000S is the updated version, with better appearance and function:

·With upgraded mold, the appearance is more exquisite and nice;

·4 levels of sensitivity indication, the display is more intuitive;

·Circuit re-optimization, higher reliability;

·Improved battery cover for easier battery installation.



Under normal working circumstance, the detector will beep when it is turned on.

It is different with the rapid sound of warning alarm.



Technical parameters:

Operating temperature: 0~52℃ (30℉ to 125℉)

Maximum sensitivity: 6 gr/yr, for all halogenated refrigerants

Battery life: Approximately 50 hours normal use

Response time: Instantaneous

Work mode: continuous, no limitation

Fixed probe length: 20cm

Unit dimensions: 1.37 x 1.37 x 5.90 in

Warm-up time: approximately 6 seconds

Reset time: two to ten seconds

Power supply: 4*AAA batteries

• Upgraded 5 LED indicators reflect gas concentration.
• Freon leak detector triggers on R22, R134A, R404a, R410A and all halogenated refrigerants including HFCs, CFCs,HCFCs and blends.
• 7 Adjustable Sensitivity; Maximum sensitivity is 0.21oz/yr.
• Response within 3 seconds; Warm up in 6 seconds; Audible alarm and low battery indicator.
• A flexible probe around 7.9-inch allows detections in difficult and hard-to-reach areas. 24/7 US Technician Support via Email and Phone.

User questions & answers

Question:	does it work for 1234yf refrigerant
Answer:	yes
Question:	When i first received it and turned it on it would beep after 5 or 6 times No beeping noise no matter what i do wont beep when i turn it on
Answer:	Your unit is defective. Upon switching on the unit should beep twice a second. Verify that it 's not a battery issue, i.e. week batteries or loose connection or damaged connector wire. If not battery related, ask to return it for a refund or replacement.

Product features

Concentration Indicator

• Once leaking gas is detected, the beep frequency will increase. The more gas leaked, the quickly the buzzer beeps. The first indicator will flash quickly meantime and the other four LEDs will light up accordingly based on the concentration of leaked gases.
• The first indicator indicates both leak and battery level. Blinks in orange mean low battery.

Corona Sensor

It will respond to all halogenated. This includes, but is not limited to:

• CFCs e.g.R12, R11, R500, R503 etc.
• HCFCs e.g. R22,R123, R124,R502 etc.
• HFCs e.g. R134a, R404s, R125, R1234yf etc.
• Blends such as AZ-50. HP62. MP39 etc.

7 Adjustable Sensitivity

• 1-7 Grade selectable sensitivity
• Maximum sensitivity is 0.21oz/yr
• smaller leak, higher sensitivity grade
• More refrigerants, more rapidly beeps, faster indicator flashes
• Note: 2 beeps per second when the detector is open, 10 beeps per second when leak is detected)

Audible and Visual Alerts

• LED light flash alarm
• Buzzer alarm
• Dual-battery indicators

Green-the battery voltage is normal, suitable for the job.

Orange-the battery voltage is close to the limit work, need to be replaced asap.

Flexible Probe

• Around 7.87-inch flexible probe
• Allows detection in difficult and hard-to-reach areas.
• Replaceable sensor tip, which makes the detection more accurate.

4AAA Batteries

• Battery life: about 50 hours

Leak Detector equips with:

• Compact design
• Portable black bag to carry and storage
• Note: batteries NOT included

Technical Parameters

Product description

D-TEK Select has been a leader in the HVAC/R service field for over a decade. Superior sensitivity, accuracy, and reliability help you find even the smallest leaks fast. A rechargeable battery, field replaceable infrared sensor, and high-performance filter make D-TEK Select a must in any technician’s toolbox.

• Sensitivity of 0.10 oz./year (3 g/year)
• Detects all CFCs, HCFCs, HFCs, and HFOs
• Field-replaceable infrared sensor lasts for 1,000 hours
• High performance filter prevents sensor contamination
• Automatic and manual zero modes
• Sensitivity will not degrade over time
• Rechargeable NiMH battery

User questions & answers

Question:	does it detect 1234yf
Answer:	This is the info I have: Spec Summary: Base unit includes: Infrared cell, NiMH power stick, spare filters, 110VAC adapter with 6' cord, 12V adapter with cigarette lighter plug, and a hard plastic carrying case. Minimum sensitivity to R-12, R-134a, R-404a: 0.10 oz/yr (3 gm/yr) Controls: Power: on/off Sensitivity: high/low Power: NiMH power stick Battery life: 6.5 hours Charging options: 110VAC adapter with 6' cord 12V adapter w/cigarette lighter plug Weight with power stick: 0.19 lb (0.54 kg) Probe: Chrome-plated flexible metal, approx. 17" (43 cm) long Recharger: Built in Operating temperature: 32 to 122°F (0 to 50°C) Storage temperature: 14 to 140°F (-10 to 60°C) Case material: Self-extinguishing, per UL94HB Certifications: CE Marking Power Safety and EMC. SAEJ1627 D-TEK Select Refrigerant Leak Detector- Brochure Information You can go to their site, they have a tech support number.
Question:	can it detect flamable gases ? natural gas / propane
Answer:	Inficon makes a combustible gas detector called gas-mate. This is what you want. We have three to leak test propane refrigerant refrigeration units. It works well. It detects methane, natural gas,ammonia,propane, ethanol,hydrogen sulfide etc.
Question:	Does this detector include Lithium ion batterie
Answer:	Good question, purchased for my co-workers who requested this one. Thank you!
Question:	Good Morning !! This product can be shipped to Brazil
Answer:	Not through Amazon. Sorry.

• 【Up to 10 years' Sensor Life 】Elitech self-developed this innovated sensor that enormously extends its senor life up to 10 years; and also a much more precise result on all halogenated refrigerants than the traditional corona and heat-diode sensors.
• 【Heightened Accuracy】Adjustable sensitivity with High/Medium/Low levels and the maximum sensitivity is up to 0.14oz/yr.
• 【Quick Operation】The two corresponding buttons on the front allows quick adjustment to sensitivities or to mute buzzer directly, very easy to operate.
• 【First with TFT Screen 】World's first leak detector with a TFT screen that gives more clear and easy readings on sensitivities, leakage alerts, battery levels and other key info during operations.
• 【Safe & Reliable】Strong anti-interference and wide measurement; meets EN14624,SAE-162,SAE-2791 and SAE-2913 standards.

User questions & answers

Question:	Just used this for the first time ,is the mute button just on or off for the buzzer ? If so , you people think this is a loud buzzer ? Hardly
Answer:	I suggest off the mute button to enable the buzzer.
Question:	Does this detect hydrocarbons? And will it display parts per million I’d like to be able to use it for testing for combustion gasses in a coolant
Answer:	The detector cannot be used for flammable gas.
Question:	Does it detect the new 1234yf refrigerant
Answer:	Yes
Question:	Does this unit detect r410 refrigerant
Answer:	Yes. This leak detector works great for the price. Haven’t used the Uv light option. I’ve had this for a while now and hasn’t let me down.

Product features

TFT Screen

The first TFT / LCD infrared leak detector:

• Easy and clear readings
• Animated sensitivity indication
• Animated screen alarm indication
• Real-time battery allowance display

Sensitivity Adjustable

When the detection result is not stable, lower the sensitivity level to adapt to the environment.

• 3 Selectable Sensitivity Levels -High/Medium/Low
• Maximum sensitivity up to 0.14oz/yr
• Suitable for all detection scenario
• Smaller leak, higher sensitivity grade

Lithium Battery for 6 Hours

• Battery: built-in rechargeable lithium battery 3.7V 3000mAh
• Working time: continuous 6 hours
• Charging time: 4 hours

Mute&Earphone Function

With earphone port, suitable for detecting even in a noisy environment

• Traditional coronal sensor with upgraded low-energy CPU, more stable and fast triggers on R11, R22, R134A, R404a, R410A and all halogenated refrigerants including HFCs, CFCs,HCFCs and blends.
• Response in 3 seconds; Warm up in 6 seconds. An alternative sensor tip is included.
• 7 Adjustable Sensitivity with max. sensitivity of 0.11oz/yr.
• Audible and visual gas leakage indicators and dual battery indicator.
• Meets EN14624 and SAE-1627 Standards. 24/7 US Technician Support via Email and Phone.

User questions & answers

Question:	Does this device detech R134A
Answer:	yes, it detects R134a.
Question:	Well this work for 404a
Answer:	Yes. it works for 404a.
Question:	Does it detect nitrogen? We pressurize the systems with nitrogen to find leaks
Answer:	Sorry, we can not detect nitrogen, but more stable and fast triggers on R11, R22, R134A, R404a, R410A and all halogenated refrigerants including HFCs, CFCs,HCFCs and blends.
Question:	Will unit test R1234yf new car freon
Answer:	Yes, the detector sensitivity of this gas is about 9 g/year.

Product features

HLD-100+ Portable Halogen Refrigerant Leak Detector (Corona Sensor)

HLD-100 halogen leak detector, as the exquisite unit of our company with its feature of higher performance, has powerful function and high sensitivity.

Advanced Corona Detector

• Long battery life, more stable detection

It will respond to all halogenated. This includes, but is not limited to:

• CFCs e.g.R12, R11, R500, R503 etc.
• HCFCs e.g. R22,R123, R124,R502 etc.
• HFCs e.g. R134a, R404s, R125 etc.
• Blends such as AZ-50. HP62. MP39 etc.

Short Preheating Time

• Once the switch rotated, the detector will be ready to use.
• Preheating time: 6s
• Response time: 3s

7 Adjustable Sensitivity

• 1-7 Grade selectable sensitivity
• Maximum sensitivity is 0.11oz/yr
• Lower sensitivity grade when unstable detecting results
• Higher sensitivity grade when leakage are smaller.

Audible and Visual Alerts

• LED light flash alarm
• Buzzer alarm
• Dual-battery indicators
• More refrigerants, more rapidly beeps, faster indicator flashes

Application

• Air Conditioning Maintenance
• Vehicle Maintenance and Repair
• Refrigeration Equipment Testing
• Refrigerator Repair

Flexible Probe

• Around 13.98-inch flexible probe
• Allows detection in difficult and hard-to-reach areas.

2C Batteries

• Powered by 2C Batteries
• Notice: They are not included in the package

Specifications

Product description

The Robinair LD7 Premium Refrigerant Leak Detector features a new color graphic display that highlights leak sizes in two unique ways. Bar graph mode shows the amount of refrigerant detected in the air and changes colors as the sensor gets closer to the leak. Sweep mode allows the user to see the level of refrigerant detected in the air through a line graph that helps the user trace back and forth to pinpoint the exact source of the leak. The LD7 also uses an audible alarm to alert technicians of a refrigerant leak, UV LED lights to locate leaks using UV dye and an inspection light for searching in dark locations. The LD7 is compatible with most commonly used refrigerants today, including R-134a and 1234yf, and is equipped with a stable, long life sensor that will last up to 10 years. The LD7 meets all of the current industry leak detector standards and is covered by a 2-year warranty. Uses 4 AA batteries, included.

• Patented 3 LED UV lights with 395-415 nm wave length is optimum for a/c dye fluorescence
• Sweep mode function to pinpoint leak source with automatic calibration and reset to ambient
• UV wave-length: 395-415 nanometers
• Unique 120 x 160 full color graphic LCD screen with user friendly message and error screens
• 3 adjustable sensitivity levels, and 17 inches probe length
• Fit type: Universal Fit

User questions & answers

Question:	Is this a corona discharge or a heated diode sensor
Answer:	It's neither of those types. The sensor on the LD7 is a mildly heated solid electrolyte semiconductor sensor. The sensor detects reducing gases exemplified by hydrogen compounds and halogenated hydrocarbons. It has excellent sensitivity to all HFO, HFC, HCFC, and CFC refrigerants including blends and the new R-1234yf refrigerant. Because it doesn't draw huge power it's able to operate on four AA disposable batteries.
Question:	Does it work on R22 snd R410a
Answer:	Yes. The LD7 features a long life solid electrolyte semiconductor sensor technology that is designed to detect all CFC, HCFC, HFC, and HFO refrigerants including R-1234YF (HFO), R-134A (HFC), R-410A (HFC), R-22 (HCFC), R-407C (HFC), R-507 (HFC), R-12 (CFC), R-404C (HFC). The LD7 is designed to detect all SNAP approved refrigerant blends
Question:	does this comes with a case
Answer:	Yes, it comes with a case,
Question:	is this the same technology as the Prowler from JB
Answer:	The sensor technology is similar, but the features and functions of this product are different than what’s available on the JB Prowler product.