Fieldpiece DRX3 Refrigerant Leak Detector

DRX3 is a refrigerant and combustible gas leak detector with ATEX Zone 2 certification and a heated diode sensor. It detects A3, A2L, A1, HFO, HCFC, CFC, HC refrigerants, and tracer gas (95% N₂ + 5% H₂). A sensitivity of 1 g/year (stationary) and replaceable lithium batteries ensure safe, precise work in hazardous-area environments.

What it's used for

• Detecting refrigerant leaks in HVAC/R systems
• Safe work in explosive atmospheres (ATEX Zone 2 / Class I Div 2)
• Detecting combustible gases: natural gas, propane, butane, methane
• Measurement with tracer gas (95% N₂ + 5% H₂)
• Handling A3 (R-290, R-600a), A2L (R-32, R-454B, R-1234yf), and A1 refrigerants

Key features

• ATEX Zone 2 certification — allows safe use in hazardous areas and with A3 refrigerants
• Heated diode sensor — sensitivity of 1 g/year stationary, 3 g/year moving; sensor is field-replaceable
• Detection of A3, A2L, A1 refrigerants and combustible gases — covers a wide range: HC, HFC, HCFC, CFC, HFO, H₂/N₂, and heating gases
• Replaceable RXA3 sensor — no need to replace the entire detector when the sensor wears out (service life ~300 h)
• LED + audible + LCD leak indication — illuminated probe tip, bar graph, digital readout, and audible alarm
• 2.4 GHz Job Link connectivity — live readings in the app, range up to 200 m
• 60-hour battery life — 4 × AA lithium iron disulfide cells (Energizer L91) with 10-minute auto shut-off

Selected specificationsTypeRefrigerant and combustible gas leak detectorModelFieldpiece DRX3SensorHeated diode, replaceable RXA3Sensor service life~300 hMaximum sensitivity1 g/year stationary; 3 g/year movingRefrigerantsA3, A2L, A1; HC, HFC, HCFC, CFC, HFO, H₂/N₂ (tracer gas)Combustible gasesNatural gas, propane, butane, methaneATEX certificationZone 2 (II 3 G Ex ic IIA T2 Gc); Class I Div 2Ingress protectionIP54Battery4 × AA lithium iron disulfide (Energizer L91)Battery life~60 hWireless range2.4 GHz, up to 200 m (Job Link)Operating temperature−20 °C to +50 °CWeight442 g with batteriesIn the box

• 1 × DRX3 leak detector
• 1 × RXA3 diode sensor
• 1 × Carrying case
• 4 × AA lithium iron disulfide batteries (ATEX)