A2L Refrigerant Leak Detector Certified Tools for R-454B & R-32 Systems
As of 2026, the HVAC industry has fully pivoted toward Low-GWP A2L refrigerants like R-454B and R-32. Because these refrigerants are classified as mildly flammable, using a standard "sniffer" is no longer enough—you need A2L certified leak detectors designed with spark-proof sensors and intrinsic safety.
Our curated selection of detectors features advanced technology to help you identify even the smallest leaks in high-stakes environments:
-
Infrared (IR) Sensors: Best for avoiding false alarms from oils and moisture.
-
Heated Diode Technology: Optimized for maximum sensitivity to A2L molecules.
-
Ultrasonic Detectors: Ideal for noisy or drafty outdoor installations where gas scatters quickly.
Why Upgrade Your Toolbag? Legacy tools often lack the sensitivity required for the subtle chemical profiles of new refrigerants. Investing in professional A2L refrigerant leak detector ensures you meet the latest EPA Section 608 standards and local building codes.
Need more than just a detector? Ensure your entire service kit is compliant by browsing our Recovery machines and digital manifold gauges.
Aprvtio ALD-200 AC Refrigerant Leak Detector, A1 A2L A3 Refrigerants Compatible 16-Inch Sensor Probes with Loud Alarm, Rechargeable HVAC Leak Detection Kit for R32 R454B
Aprvtio ALD-200 AC Refrigerant Leak Detector is a powelful and economic HVAC tool, which is equiped with sensitive sensor, big display screen, easy-operate buttons and hand-held shapes. The freon leak detector uses the heated diode detection principle. Maximum sensitivity up to 0.14oz/yr and...
$199.99
$119.99
Aprvtio ALD-200 HP Heat Pump Refrigerant Leak Detector, Rechargeable 3000mAh Battery 16-Inch Sensor Probes with Loud Alarm for R32 R134A R410A R22 A2L R454B
Heat Pump Refrigerant Leak Detector 【Professional Air Conditioner Heat Pump Refrigerant Leak Detector】ALD-200 HP is designed for heat pump ACs, detects all commercially available HFC, HFO, HC, HCFC and CFC refrigerants, as well as blends and newly approved replacements such...
$199.99
$129.99
$299.99
$219.99
Aprvtio ALD-300 Infrared Refrigerant Detector with Flexible Probe 10 Years' Sensor Life (Pre-Order)
Aprvtio ALD-300 infrared leak detector is equipped with most advanced infrared sensor which is more accurate, more sensitive and less susceptible to interference. It can immediately respond to almost all refrigerants including R22, R134A, R404a, R410A and all halogenated gastrants including HFCs,...
$299.99
$219.99
HVAC Refrigerant Leak Detector, Aprvtio ALD-100 2-in-1 A2L A1 Freon Leak Detector with TFT Screen, 3 Sensitivity Modes & 2 Alarm Types, Air Conditioning Detector HVAC for R134a R410A R32 R454B R290
Complies with the EPA Technology Transitions Rule and supports detection of new low-GWP refrigerants including R-32, R-454B, and R-290. 【Full Traditional &A2L Refrigerant Support】Equipped with a high-precision heat diode sensor, the ALD-100 ac leak detector kit detects both traditional and...
$219.99
$89.99
Aprvtio ALD-200 Pro HVAC Refrigerant Leak Detector for A3 A2L A1 Refrigerants, Automotive AC Leak Detection Kit with 0.14 oz/yr Sensitivity for R454B R134a
The Aprvtio ALD-200 PRO HVAC Refrigerant Leak Detector Complies with the EPA Technology Transitions Rule and supports detection of new low-GWP refrigerants including R-32, R-454B, and R-290. 【Designed for Modern Refrigerants (A1 / A2L / A3 Ready)】:This HVAC leak detector...
$199.99
$124.99
HVAC Refrigerant Leak Detector
Complies with the EPA Technology Transitions Rule and supports detection of new low-GWP refrigerants including R-32, R-454B, and R-290. The r134a leak detector features an advanced Japanese semiconductor sensor with three sensitivity modes, offering a maximum sensitivity of up to...
$299.99
$139.99
$219.99
$134.99
Refrigerant Leak Detector for Air Source Heat Pumps, ALD-200 PRO HP Freon Leak Detector for R410A, R290, R32, R454B
The Aprvtio ALD-200 PRO HP Refrigerant Leak Detector for Air Source Heat Pump Complies with the EPA Technology Transitions Rule and supports detection of new low-GWP refrigerants including R-32, R-454B, and R-290. 3 modes of sensitivity with maximum sensitivity up...
$219.99
$134.99
Refrigerant Leak Detector, Aprvtio WJL-6000PRO Combine PPM Freon & Combustible Gas Leak Detector with Loud Alarm, 1800mAh Rechargeable Battery for R32 R454B R410A Propane Methane
【Dual Detection Modes: PPM + %LEL for Precision & Safety】 This gas leak detection kit measures refrigerant leaks in two ways—PPM for ultra-sensitive micro leak detection, and %LEL for monitoring A2L refrigerant safety—giving you professional-grade diagnostic power in one versatile...
$79.99
$45.99
Refrigerant Leak Detector, Aprvtio WJL-6000PRO Refrigerant Gas Leak Detector with Dual Detection Modes PPM &%LEL, AC Freon Leak Detector Kit for Auto AC Repair, R134a R12 R22 R410A CFCs HCFCs HFCs HFOs HCs
【Dual Detection Modes: PPM + %LEL for Precision & Safety】 This refrigerant tester measures refrigerant leaks in two ways—PPM for ultra-sensitive micro leak detection, and %LEL for monitoring refrigerant safety—giving you professional-grade diagnostic power for automotive and residential systems. 【Upgraded...
$69.99
$39.99
Refrigerant Leak Detector, Aprvtio ALD-200+ HVAC Freon Sniffer 2026 Upgraded 3-in-1 A1 A2L A3 & Low-GWP Compatible, Smart Semiconductor Sensor with 0.14 oz/yr Sensitivity, Professional AC Sniffer
【Professional-Grade Aprvtio Smart Sensor】 Engineered for precision-driven HVAC pros, this freon sniffer features the aprvtio upgraded smart semiconductor sensor with adjustable sensitivity down to 0.14 oz./yr.—delivering real-time responsiveness and pinpoint accuracy that sets a new standard for professional leak detection....
$199.99
$129.99