Best Fieldpiece Refrigerant Leak Detector in 2025
Updated on August 2025
#1
Recommended
8% Off
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- Portable refrigerant leak detector and monitor
- Dual modes for versatile leak detection
- Redesigned infrared sensor
- Industry-leading sensor lifespan
- Compatible with various refrigerants
- Field replaceable components
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- Portable refrigerant leak detector and monitor
- Dual modes for versatile leak detection
- Redesigned infrared sensor
- Industry-leading sensor lifespan
- Compatible with various refrigerants
- Field replaceable components
#2
Value for Money
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- Multiple sensitivity settings available: low, medium, high, and super
- Features both automatic and manual zeroing modes
- Compatible with CFCs, HCFCs, HFCs, HFOs, and blends, including A2L refrigerants
- Includes a durable carrying case for transport and storage
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- Multiple sensitivity settings available: low, medium, high, and super
- Features both automatic and manual zeroing modes
- Compatible with CFCs, HCFCs, HFCs, HFOs, and blends, including A2L refrigerants
- Includes a durable carrying case for transport and storage
#3
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- Infrared refrigerant leak detection technology
- Advanced infrared sensor for precise detection
- Large backlit LCD display for visible information
- High sensitivity of better than 0.03 oz/yr (1g/a)
- Compatible with HFC, CFC, HCFC, HFO refrigerants and blends
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- Infrared refrigerant leak detection technology
- Advanced infrared sensor for precise detection
- Large backlit LCD display for visible information
- High sensitivity of better than 0.03 oz/yr (1g/a)
- Compatible with HFC, CFC, HCFC, HFO refrigerants and blends
#4
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- Heated diode technology for accurate refrigerant leak detection
- Sensitivity of 0.03 oz/yr (1g/a) for reliable performance
- Bright LCD screen featuring bar graphs and numeric data for easy interpretation
- 18-hour battery life on a USB rechargeable lithium-ion battery
- Compatible with all HFC, CFC, HCFC, HFO refrigerants and their blends
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- Heated diode technology for accurate refrigerant leak detection
- Sensitivity of 0.03 oz/yr (1g/a) for reliable performance
- Bright LCD screen featuring bar graphs and numeric data for easy interpretation
- 18-hour battery life on a USB rechargeable lithium-ion battery
- Compatible with all HFC, CFC, HCFC, HFO refrigerants and their blends
#5
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- Heated diode sensor provides enhanced accuracy for all halogenated refrigerants compared to traditional sensors.
- First leak detector equipped with a TFT screen, offering clear readings for sensitivity levels, leakage alerts, and battery status.
- Features adjustable sensitivity with high, medium, and low settings, with maximum sensitivity reaching 0.1 oz/year.
- Two front buttons enable quick adjustments to sensitivity levels and muting of the buzzer for straightforward operation.
- Capable of detecting all halogenated gases, including CFCs, HFCs, HCFCs, HCs, HFOs, and various refrigerant blends, with a response time of 1 second.
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- Heated diode sensor provides enhanced accuracy for all halogenated refrigerants compared to traditional sensors.
- First leak detector equipped with a TFT screen, offering clear readings for sensitivity levels, leakage alerts, and battery status.
- Features adjustable sensitivity with high, medium, and low settings, with maximum sensitivity reaching 0.1 oz/year.
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#6
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- Sensitivity of 0.25 oz./year (7 g/year) for precise detection
- Effectively detects a range of refrigerants, including CFCs, HCFCs, HFCs, and HFOs
- Equipped with a heated diode sensor for dependable leak detection
- Sensor has a lifespan of 100 hours under normal usage
- Includes a durable carrying case for portability
- Supported by US-based technicians via email and phone
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- Sensitivity of 0.25 oz./year (7 g/year) for precise detection
- Effectively detects a range of refrigerants, including CFCs, HCFCs, HFCs, and HFOs
- Equipped with a heated diode sensor for dependable leak detection
- Sensor has a lifespan of 100 hours under normal usage
- Includes a durable carrying case for portability
- Supported by US-based technicians via email and phone
#7
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- Includes infrared and heated diode sensors for enhanced accuracy and a sensor life of up to 10 years.
- Offers adjustable sensitivity levels (high, medium, low) with a maximum detection capability of 0.14 oz/yr.
- Capable of detecting all halogen refrigerants, including CFCs, HFCs, HCFCs, HCs, HFOs, and various blends such as R11, R22, R404a, R410a, R600a, R1234yf, and AZ-50.
- Equipped with a large 2.8-foot display for clear leak detection indication, ensuring a quiet operating environment.
- Supported by a US-based team providing 24/7 customer service and technical assistance.
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- Includes infrared and heated diode sensors for enhanced accuracy and a sensor life of up to 10 years.
- Offers adjustable sensitivity levels (high, medium, low) with a maximum detection capability of 0.14 oz/yr.
- Capable of detecting all halogen refrigerants, including CFCs, HFCs, HCFCs, HCs, HFOs, and various blends such as R11, R22, R404a, R410a, R600a, R1234yf, and AZ-50.
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#8
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- High sensitivity with three adjustable modes, achieving a maximum detection of 0.14 oz/year, featuring a 16-inch probe for accessing tight spaces.
- Audible and visual alerts display leak level, with a mute function available.
- User-friendly with a reset function to prevent false positives, peak value recording, and a rechargeable battery offering 6 hours of use.
- Detects a wide range of halogenated gases including CFCs, HCFCs, HFCs, HFOs, and hydrocarbons.
- Color graphic display visualizes gas detection levels with a changing bar graph to indicate proximity to leak.
- Durable and oil-resistant design suitable for fieldwork, ensuring reliability in tough conditions.
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- High sensitivity with three adjustable modes, achieving a maximum detection of 0.14 oz/year, featuring a 16-inch probe for accessing tight spaces.
- Audible and visual alerts display leak level, with a mute function available.
- User-friendly with a reset function to prevent false positives, peak value recording, and a rechargeable battery offering 6 hours of use.
- Detects a wide range of halogenated gases including CFCs, HCFCs, HFCs, HFOs, and hydrocarbons.
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#9
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- Adjustable sensitivity with three modes for accurate refrigerant leak detection, pinpointing leaks as low as 3g/yr (0.1oz/yr) with a flexible gooseneck for hard-to-reach areas.
- Three alert options including sound (90dB), visual cues, and vibration, with a quick mute feature for convenience and enhanced low-light visibility for precise detection.
- Dual display modes on a vibrant TFT screen provide real-time refrigerant concentration levels and trend tracking, with adjustable brightness and energy-saving auto-off.
- Ergonomic design with a rechargeable 2000mAh battery for over 8 hours of use, featuring robust construction that is waterproof, explosion-proof, and dustproof for reliable performance in tough conditions.
- Broad detection capabilities for various refrigerants, including HCFs, HCFCs, CFCs, PFCs, HFOs, and HCs, ensuring versatility for different applications.
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- Adjustable sensitivity with three modes for accurate refrigerant leak detection, pinpointing leaks as low as 3g/yr (0.1oz/yr) with a flexible gooseneck for hard-to-reach areas.
- Three alert options including sound (90dB), visual cues, and vibration, with a quick mute feature for convenience and enhanced low-light visibility for precise detection.
- Dual display modes on a vibrant TFT screen provide real-time refrigerant concentration levels and trend tracking, with adjustable brightness and energy-saving auto-off.
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#10
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![HVAC Refrigerant Leak Detector [2025 Upgrade], Aprvtio ALD-200 PRO Freon& Combustible Gas Leak Detector, 2.6' Large Screen, Freon Sniffer Teater Visual and Audible Alarm for R134a R410a R454B](https://m.media-amazon.com/images/I/41pg5lI9mzL._SL320_.jpg)
![HVAC Refrigerant Leak Detector [2025 Upgrade], Aprvtio ALD-200 PRO Freon& Combustible Gas Leak Detector, 2.6' Large Screen, Freon Sniffer Teater Visual and Audible Alarm for R134a R410a R454B](https://m.media-amazon.com/images/I/41M0BOu7FsL._SL320_.jpg)
![HVAC Refrigerant Leak Detector [2025 Upgrade], Aprvtio ALD-200 PRO Freon& Combustible Gas Leak Detector, 2.6' Large Screen, Freon Sniffer Teater Visual and Audible Alarm for R134a R410a R454B](https://m.media-amazon.com/images/I/41+F8JekfJL._SL320_.jpg)
![HVAC Refrigerant Leak Detector [2025 Upgrade], Aprvtio ALD-200 PRO Freon& Combustible Gas Leak Detector, 2.6' Large Screen, Freon Sniffer Teater Visual and Audible Alarm for R134a R410a R454B](https://m.media-amazon.com/images/I/41H61-6uVKL._SL100_.jpg)
![HVAC Refrigerant Leak Detector [2025 Upgrade], Aprvtio ALD-200 PRO Freon& Combustible Gas Leak Detector, 2.6' Large Screen, Freon Sniffer Teater Visual and Audible Alarm for R134a R410a R454B](https://m.media-amazon.com/images/I/41pg5lI9mzL._SL100_.jpg){kind=small}
![HVAC Refrigerant Leak Detector [2025 Upgrade], Aprvtio ALD-200 PRO Freon& Combustible Gas Leak Detector, 2.6' Large Screen, Freon Sniffer Teater Visual and Audible Alarm for R134a R410a R454B](https://m.media-amazon.com/images/I/41M0BOu7FsL._SL100_.jpg){kind=small}
![HVAC Refrigerant Leak Detector [2025 Upgrade], Aprvtio ALD-200 PRO Freon& Combustible Gas Leak Detector, 2.6' Large Screen, Freon Sniffer Teater Visual and Audible Alarm for R134a R410a R454B](https://m.media-amazon.com/images/I/41+F8JekfJL._SL100_.jpg){kind=small}
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- Three sensitivity modes with a maximum sensitivity of 0.14 oz./yr. for effective refrigerant leak detection.
- 16-inch sensor probes facilitate access to difficult areas.
- Visual and audible alarms intensify with increasing refrigerant gas concentration.
- 2.6-inch large screen features a bar graph to display gas levels, changing colors as proximity to the leak increases.
- Built-in 3000mAh rechargeable battery provides up to 6 hours of continuous use, promoting environmental friendliness.
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- Three sensitivity modes with a maximum sensitivity of 0.14 oz./yr. for effective refrigerant leak detection.
- 16-inch sensor probes facilitate access to difficult areas.
- Visual and audible alarms intensify with increasing refrigerant gas concentration.
- 2.6-inch large screen features a bar graph to display gas levels, changing colors as proximity to the leak increases.
Read More
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