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20 Best R134A Leak Detector Harbor Freight of 2023 – Romance University

After hours researching and comparing all models on the market, Romance University finds out the Best R134A Leak Detector Harbor Freight of 2023. Check our ranking below.

2,164 Reviews Scanned

Rank No. #1

Elitech Refrigerant Leak Detector, CLD-100 Freon Leak Detector Car HVAC Halogen Refrigerant Leak Detector CFCs HCFCs HFCs

Upgraded version of WJL-6000. Traditional corona sensor with updated analogue circuit, fast triggers on R11, R22, R134A, R404a, R410A and all halogenated refrigerants including HFCs, CFCs,HCFCs and blends.
6s preheating time, instantaneous response; 6 adjustable sensitivity, sensitivity of 0.21oz/yr.
A flexible probe around 8.26 inches allows detections in difficult and hard-to-reach areas.
Direct status indication with audible & visual leakage alarm indicators and dual colour battery indicators. Battery by 4 AAA batteries (Not included)
24/7 US Technician Support via Email and Phone.

Rank No. #2

SENSYX Rechargeable HVAC Refrigerant Leak Detector, Halogen Freon Sniffer, Air Conditioning Detection, Automotive Gas Finder (SFD201 Refrigerant&Combustible Gas Detector)

RECHARGEABLE LITHIUM BATTERY: Enjoy the convenience of cordless operation with our rechargeable lithium battery. A USB-C cable is included for easy charging, allowing for enhanced mobility and prolonged use without the need for constant power supply.
HIGHLY SENSITIVE SENSOR: Features a Japan-made heat dioxide semiconductor sensor, renowned for its exceptional sensitivity and reliability in detecting gas leaks.
HIGHER SENSITIVITY: Adjustable sensitivity with High/Low levels.
BROAD RANGE DETECTION: Both SFD200&SFD201 are capable of identifying a wide array of halogen refrigerants, our detector efficiently pinpoints leaks in systems using refrigerants like: CFCs: R11 R12 R113 R114 R400 HFCs: R21 R22 R31 R121 R122 R123 R124 R141b R142b R221 R222 R401a R402a R402b R408a R409a R509a HCFCs: R23 R32 R41 R125 R134a R143a R404a R410a R407c R417a R507 R508a R508b R152a HFOs: R-1234yf R-1234ze R449a R452b R454a/b R455a R456a R457a R459a, etc. This versatility ensures comprehensive leak detection across diverse HVAC applications. In addtion to that, SFD201 can detect HC/Combustible Gas such as R50/Methane, R170/Ethane, R290/Propane, and R600a/Isobutane.
LARGE COLOR LCD SCREEN: Equipped with a vibrant, large LCD display, our leak detector ensures you don't miss any leaks. The clear level display not only pinpoints the location of leaks but also offers a quiet working environment, enhancing user comfort and efficiency during detection tasks.

SaleRank No. #3

VIVOHOME HVAC Refrigerant Freon Leak Detector with LED Light, AC Sniffer Leak Detector for R134a R410a R1234yf CFCs HCFCs HFCs HFOs

7 ADJUSTABLE SENSITIVITY - The VIVOHOME Freon leak detector comes with 7 adjustable sensitivity levels to ensure efficient and targeted leak detection; It has a maximum sensitivity of up to 0.21 oz/yr, which is sufficient for self-checking auto AC, air conditioning, and other systems; The real-time sensitivity automatically adjusts to the best detecting state, adapting to new concentrations from low to high
VISUAL & AUDIBLE ALERTS - The leak detector comes with both audible and visual indicators to help you easily detect any gas leaks; It emits 2 beeps per second when open, and the beeping frequency is up to 10 times per second when detecting the gas leakage; The light flashes increasingly when a leakage is detected; The LED light is normally green, indicating that the battery voltage is normal and suitable for continuous detection; If the LED light turns orange, it means the battery voltage is close to the limit and should be replaced immediately
RELIABLE DETECTION - The VIVOHOME refrigerant leak detector has a 6-second preheating and 3-second response time for rapid leakage identification, ensuring safe and reliable refrigeration system operation; The 7.9-inch flexible probe can reach almost any awkward corners or space for more accurate detection; The leak detector comes with a 2-in-1 pen flashlight; The UV light works with the fluorescent agent to quickly locate the leakage point, while the white light can illuminate dark places; Note: It is recommended to turn on the leak detector and wait for 6 seconds away from the potential leakage area
USER FRIENDLY - The VIVOHOME leak detector can detect refrigerant gases easily; First, install 4*AAA batteries to the battery compartment; Then turn on the detector and wait for 6 seconds until it beeps; Adjust sensitivity among 1-7 levels according to your needs; Once a leak is detected, a regular beep will change to a rapid beep, and the indicator lights will flash more rapidly; After use, turn the knob counterclockwise to turn it off; Note: 4*AAA batteries are not included in the package
WIDELY USED - The VIVOHOME leak detector is capable of detecting leaks in a variety of refrigerants, including R11, R22, R134a, R404a, R1234yf, SF6, and all halogenated refrigerants, including HFCs, CFCs, HCFCs, HFOs, and blends; It can be used to locate leaks in air conditioning systems, refrigeration units, and other equipment that utilize Freon or similar refrigerants; The device assists in the identification and repair of leaks, thereby ensuring the efficient operation of the equipment

Rank No. #4

WJL-6000 Freon Leak Detector Halogen Gas Sniffer Refrigerant AC Leak Tester R22 R410A R134A R1234YF

【Precise Leak Detection】: Adopt the most advanced sensing technology and microprocessor chips to help users accurately locate the leakage points of various refrigerants, such as CFC, HFC, HCFCs, HC, HFO, etc.
【Adjustment of Sensitivity】: The unit features vari-speed sensitvity adjustment and can be adjusted during the course of detecting. Clockwise adjusting means high sensitivity and in reverse means low.
【Leak Alarm】: When the leaked gas is detected, the audible tone will change to a "siren" typesound. More refrigerant, more siren. At the same time, Indicator light is flashing quickly.
【KIT Included】: This kit includes a UV lamp and UV resistant glasses, equipped with 3 long-lasting AAA batteries. UV lamp can help you locate leaks in your car's air conditioning system. High quality plastic safety glasses ensure safe Freon leak testing in dark places and block UV rays to protect your eyes.
【Buy with Confidence】: We provide you with 100% satisfaction guarantee. If there is any problem with your refrigerant leakage detector, please contact us, and we will provide you with return, exchange and repair.

Rank No. #5

HVAC Refrigerant Leak Detector, ALD-200 Freon Leak Detector, Rechargeable Freon Sniffer Halogen Combustible Gas Leak Detector 16-Inch Sensor Probes with Loud Alarm,for R134A R410A R22 R600A R454B

【High Sensitivity and Adjustable】This AC leak detector uses a Japanese semiconductor sensor with three adjustable sensitivity levels (up to 0.14 oz./yr.) and a 16-inch flexible probe for tight spaces.
【Audible & Visual Alarm with Mute Function】When the leakage is detected, the 2.8’’ TFT color display screen will show the leakage level, and more rapidly it beeps. Press the MUTE button to turn on/off the buzzer.
【2.8’’ TFT Color Display】The r134a leak detector features a new color graphic display that ensures clear visibility in both dark basements and bright sunlight
【Smart Features】 Smart features like Peak Mode (records max leak levels) and Reset Function (reduces false positives) make it a user-friendly choice for HVAC professionals.
【Durable and Oil Resistant】 Built with durability in mind, the freon detector has an oil-resistant, rugged design to withstand tough repair environments.

Last update on 2025-07-05 / Affiliate links / Product Titles, Images, Descriptions from Amazon Product Advertising API

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FAQ:

Q: How much is 12 oz of R134a refrigerant?

A: 12 oz. R134a Refrigerant. (156) Write a Review. Johnsen’s 12 oz. R-134 refrigerant for use in all factory installed and/or retrofitted R-134A A/C systems. $649. Compare to. NAPA NFR ZX3012 at $7.99 Save 18%.

Q: How many alarm levels does this refrigerant/gas leak detector have?

A: Featuring 7 sensitivity and 18 alarm levels, this electronic refrigerant/gas leak detector recognizes most gases that contain chlorine, fluorine or bromine – also known as halogen gases.

Q: What is johnjohnsen R-134a?

A: Johnsen’s R-134a is proudly made and packaged in the USA for use in all factory installed and/or retrofitted R-134A auto A/C systems. It comes with a standard ACME threaded cap for use with simple screw on charge hoses and professional technician air conditioning manifold gauge tools.

R134A Leak Detector Harbor Freight