Best Electronic Refrigerant Leak Detector to Buy Right Now (2022)

Sometimes it might be quite difficult to find the best electronic refrigerant leak detector. With every niche market offering so many different products, it makes sense that this is the case.

Unfortunately, this very fact can make it incredibly difficult to find the item that best suits your needs, which is why we’ve put together this electronic refrigerant leak detector buying guide.

Our Favorite Picks:

The 10 Top Electronic Refrigerant Leak Detector Reviews:

SaleBestseller No. 1
MASTERCOOL 55900 Blue Refrigerant Leak Detector (IntellaSense II)
  • "Super Sensitive Function" allows the unit further sensitizing beyond the standard settings for locating small leaks with gases such as R1234yf and R407C
  • Intelligent tip design that senses the condition of the environment, to eliminate the potential of false alarms
  • Detects all refrigerants (CFC's, HCFC's, & HFC's and blends)
  • Flexible 15. 5" probe for difficult to reach locations
  • Sensing Element: Heated tin oxide
SaleBestseller No. 2
MASTERCOOL 56100 Blue Raptor Refrigerant Leak Detector
  • DIGITAL SIGNAL MICRO-PROCESSOR provides precise and instant responses
  • SENSITIVITY LEVEL ADJUSTMENT with 3 levels of sensitivity and 5 levels of detection
  • STATE OF THE ART FEATURES including visual leak level indicator, keypad control and reset function
  • VARIABLE FREQUENCY audible alarm
SaleBestseller No. 3
allsun Pro Ultrasonic Leak Detector Kit Advanced Refrigerant Air Gas Liquid Leak Detector Auto Leakage Tester Ultrasonic Detect Stethoscope Noise Diagnosis Tool
  • 【WHAT YOU GET】Air Ultrasonic Leak Detector is consists of an ultrasound receiver, a tone generator, an air probe, a contact probe and a headphone. Please kindly note it, battery(9V, 6F22 or equivalent, 2 pieces) are not includes.
  • 【WIDELY APPLICATION】The electronic stethoscopes is a very useful diagnostic test tool which can reduce downtime and maintenance related costs of the tested equipments. Air/Vacuum Leaks; Gas and Liquid Turbulence; Electrical Discharge; Mechanical Wear; Sound Generation.
  • 【THE RECEIVER PERFORMANCE】allsun pro ultrasonic leak is mechanics electronic stethoscope, the receiver is sensitive to ultrasonic in the frequency range of 36k to 44kHz Audio feedback and a 10 bar LED indicator for visual intensity of signal, 33mm directional receiver port, 3.5mm stereo jack and a rotary on/off volume control switch.
  • 【ACCURATE & RELIABLE】Pro Ultrasonic Leak Detector Kit,the 30cm air probe serves to extend reach or to facilitate isolating a leak among multiple suspect areas. This Ultrasonic Diagnostic Tool is easy to carry and operate, and its detection result is accurate and reliable.
  • 【TONE GENERATOR PERFORMANCE】Advanced Refrigerant Leak Detector,the Tone Generator emits a warble output centered at 40kHz for use in testing seal integrity in non-pressurized vessels. The human ear cannot hear this output, so the Tone Generator must be used in conjunction with the Receiver.
SaleBestseller No. 4
Testo 316-3 I Refrigerant Leak Detector I High Sensitivity Detector for Refrigerant substances
  • Fast and reliable: Thanks to automatic zeroing, the testo 316-3 measuring instrument for HVAC systems delivers rapid measurements and can be used in previously contaminated areas
  • Versatile: The durable, battery-powered detector provides reliable measurements for all CFCs, HFCs and HCFCs as well as R22, R134a, R404A, R410A, R507 and R438A refrigerants
  • Excellent sensitivity: The patented heated diode sensor with outstanding high/low sensitivity adjustment down to 0.15 oz./year makes locating refrigerant leaks amazingly efficient
  • Sophisticated: Like all testo products, the testo 316-3 is a premium, well-thought-out product that combines a rugged, functional housing with state-of-the-art design features
  • Easy operation: The measurement device is equipped with an LED indicator, an audible alarm and convenient one-button operation and is thus practical, intuitive and user-friendly
SaleBestseller No. 5
MASTERCOOL 56200 Blue Raptor Refrigerant Leak Detector with UV Light
  • DIGITAL SIGNAL MICRO-PROCESSOR provides precise and instant responses
  • SENSITIVITY LEVEL ADJUSTMENT with 6 levels of sensitivity and 15 levels of detection
  • STATE OF THE ART FEATURES including visual leak level indicator, keypad control, mute and reset function
  • VARIABLE FREQUENCY audible alarm
  • UV/BLUE LED LIGHT is built into the end of the unit to provide ultra bright UV leak detection
SaleBestseller No. 6
Fieldpiece DR82 - Infrared Refrigerant Leak Detector
  • Infrared Refrigerant Leak Detector
  • State-of-the-art infrared sensor
  • Massive backlit LCD screen provides clear, easy-to- see information
  • Sensitivity better than 0.03 oz/yr (1g/a)
  • Detects all HFC, CFC, HCFC, HFO and blends
Bestseller No. 7
INFICON D-TEK Stratus Refrigerant Leak Detector and Portable Monitor, Model: 724-202-G1
  • Refigerant leak detector and portable monitor
  • Cloud hunter and pinpoint modes is like having two leak detectors in one
  • All new, redesigned infrared sensor.
  • Longest sensor life in the industry
  • Detects all CFCs, HCFCs, HFCs, HFOs and CO2 (Requires CO2 sensor, sold separately)
Bestseller No. 8
Elitech HVAC Refrigerant Leak Detector 10 Yrs Infrared Sensor Life Halogen Freon Sniffer, Air Conditioning Detection, Automotive Gas Finder, R22 R410A R134A R1234YF CFCs HCFCs HFCs, ILD-200
  • Infrared Leak Detector: Compared with the heated diode leak detector, the infrared refrigerant leak detector has strong anti-interference ability, faster response speed, more accurate and longer service life.
  • Higher Sensitivity: Adjustable sensitivity with High/Medium/Low levels and the maximum sensitivity is up to 0.14oz/yr. Meet SAE-2791 & SAE-2913 standards for automotive AC leakage detection as well as the refrigeration industry.
  • Detecting All Halogenated Gases: It can detect all kinds of halogen refrigerants including CFCs, HFCs, HCFCs, HCs, HFOs and mixed refrigerants such as R11/R22/R404a/R410a/R600a/R1234yf and Blends such as AZ-50, HP62, MP39 etc.
  • 2.8' Large Screen: Do not missing any leakage. The peak display clearly indicates the orientation of the leak detection point and provides users with a quiet working environment.
  • US Local Team R&D and Service: We offer 24/7 customer service and technical support.
SaleBestseller No. 9
Aprvtio Refrigerant Leak Detector with LED Light, Halogen Leak Detector Freon Gas Leakage Tester HVAC Air Condition R22 R410A R134A R1234YF CFCs HCFCs HFCs Indicator WJL-6000PRO 2021 Upgrade
  • 【Two-Color LED Light】The Freon tester comes with UV lamp + white flashlight. UV lamp is used with fluorescent agent, white light is suitable for illuminating dark and small places.(LED light contains battery)
  • 【Upgraded Version of WJL-6000】WJL-6000Pro halogen leak detector is the upgraded version of the classic WJL-6000 with higher sensitivity. New upgraded LCD screen displays sensitivity level and refrigerant gas leakage level, even multiple alarm functions.
  • 【Higher Sensitivity】7.9 inch flexible sensing tip with with higher sensitivity(up to 0.14oz/yr.) that compared with WJL-6000(0.21oz/yr), It can continuously work for 50 hours with 4*AAA batteries power supplied.
  • 【Visualization of leakage levels】The new upgraded LCD screen will display the leakage level of refrigerant gas. In addition, adjust the sensitivity by pressing the button, LCD screen will display sensitivity level.
  • 【Multi-Alarms】The audible and visual display alarms in the leakage tester can easily help you to locate where the leakage is. Once leaking gas is detected, the beep frequency will increase. The more gas leaked, the quickly the buzzer beeps, at the same time, the LCD screen displays the leakage level.
Bestseller No. 10
Xetron HVAC Heated Diode Refrigerant Leak Detector Automotive AC Mute[for R134A R410A R22] Auto/ Manual Zero Calibration, Freon Sniff Halogen Gas Leak Detector, JP Semiconductor, CFCs HCFCs HFCs HFOs
  • 【Japanese Semiconductor Sensitivity 20x Higher Than Soap Bubbles 】Makes it easy to track down even the smallest leaks in various environments. Continuous detection mode, instantly responding to all halogenated gases (including chlorine, fluorine, bromine): [CFCs: R12, R11, R500, R503 etc.] [HCFCs: R22, R123, R124, R502 etc.] [HFCs: R134a, R404a, R125, R438a etc.] [HFOs: R1234 etc.] [HCs(Hydrocarbon): R290, R600a etc.] [ Blends: AZ-50, HP62, MP39, R410a etc.]
  • 【Sensitivity Down to 0.1oz./year (3g/year) + 500-Hour Sensor Life】3 modes of sensitivity to reach the best detection. 42cm flexible stainless steel sensing tip. You can manipulate the probe into the way you want to go. It's powered by 3 AAA batteries with low Battery Warning and showing battery life. 【When the leakage detected, screen shows the leakage level from 1 to 7 (No leakage, it displays 0)】
  • 【Auto/ Manual Zero-Point Calibration】Unlike conventional leak detectors, you have full control with both an automatic (AZERO) and manual (MZERO) zero mode. CLD-200 starts up in automatic zero mode(by default) which sets a new zero point every 2s. Moving closer to the leak source will show the relative increase in concentration, then triggering the alarm.
  • 【Audible/ Visual Alarm with Mute Function】When the leakage is detected, the screen will show the leakage level, and more rapidly it beeps. Two alarm modes you could select: 1. Audible+ Visual Alarm, 2. Visual Alarm.
  • 【Ergonomic Design for Your Hand】This sniffer will automatically power off after 30 min of no operation. ≥ 500 hours of sensor life.【Trouble-free Warranty by reaching us】Zero risk, one year warranty and lifetime customer service.

Last update on 2022-11-30 / Affiliate links / Images from Amazon Product Advertising API

How to find the best electronic refrigerant leak detector?

Here, we’ll be going over a number of factors that you can use to ensure that you’re purchasing the best electronic refrigerant leak detector for you.

Regardless of which type of item you’re looking to buy, chances are that there are existing buying guides on the internet, all of which aim to give you good electronic refrigerant leak detector recommendations.

Despite these recommendations, however, it’s always a good idea to do your own research. In addition to this research, asking yourself the following questions is also super helpful:

  • What features does the electronic refrigerant leak detector need to have to be perfect for my needs?
  • What is my budget?
  • Do I need to purchase a certain brand?

Once you’ve answered these questions and have a good idea of what you’re looking for and the buying process becomes much easier. Keep in mind that when looking for the best product, there’s no need to rush. In fact, very rarely are the ideal products found by choosing the first one you see or by basing your decisions on only one factor. Take your time and enjoy the process!

Now, with the answers to the previous questions in mind, we urge you to use our upcoming buying guide for electronic refrigerant leak detector to find what you’re looking for:


In some cases, the brand of electronic refrigerant leak detector is very important. For example, if you’re looking for an item that works in tandem with another, you might very well need both products to be the same brand. If this is the case, it’s vital to pay attention to this factor, as choosing the wrong product can mean the difference between wasting your money and buying a great product that functions as it should.


The features in any given electronic refrigerant leak detector are important because they can dictate which version of an item you need and how much money you need to spend. Consider all the key features that you want your item to have and don’t settle for anything that doesn’t check at least ¾ of your boxes.


Customer reviews about electronic refrigerant leak detector are crucial – especially when you’re buying a product that costs a lot of money or serves a big importance. Luckily, most products can be found online, which means that it’s common for there to be scores of customer reviews from those who have already purchased any given product.

Pay attention to these reviews. Take note of the pros and cons that they mention, and factor these into your big decision. In some cases, you’ll be forced to sacrifice one con in order to gain a particular pro, but being aware of the potential con is going to be beneficial in either case.


Of course, quality is key. You don’t want to purchase a low-quality product. If you do, you run the risk of your item breaking, not working properly, or otherwise proving to be very disappointing, as well as a waste of money.

You can compare electronic refrigerant leak detector quality by researching what your potential purchases are made from, contrasting the individual items against each other to discern which one is made of the best materials.


Warranty isn’t always going to be important, but it definitely can be. This is especially true if the item in question is tech-related or expensive. A good warranty will be valid for an extended time after purchase and cover a variety of problems ranging from item defects to random accidents, water damage, and other miscellaneous events that could ruin your product.


The quest to find the best electronic refrigerant leak detector can be daunting – but it doesn’t have to be. It can be made much easier by asking yourself a few simple questions and then thinking critically about the items you want to buy. Consider their features, quality, brand, warranty, and customer reviews and you’re more likely to make a great purchase.