Refrigerant Leak Detector with Pump


Refrigerant Leak Detector with Pump

The #RLD400 refrigerant detector offers a modern, electronic way to maintain mobile and stationary air conditioners, refrigerators, chillers and heat pumps. Its proprietary semiconductor sensor detects many new ozone layer-friendly refrigerants approved under the U.S. EPA’s Significant New Alternatives Policy (SNAP).


Best For:




  • Detects all commercially available HFC, HFO, HC, HCFC and CFC refrigerants, as well as blends and newly approved replacements such as R-22 (Freon) and R-1234yf
  • Powered by a proprietary sensor with a lifetime of more than 300 hours of operation (ten years of normal use)
  • Triple-redundant leak indication (a loud fast beep, a bright flashing LED, and a digital leak size reading)
  • A true mechanical pump draws in samples, increasing sensitivity
  • Three sensitivity levels
  • Fast warmup
  • Long, flexible-obedient sensor-tipped probe
  • Automatic calibration and reset to ambient levels
  • Mutable beeper
  • Garage-durable construction
  • Made in the U.S.A.
  • SAE J2791 and J2913 certified
  • Complies with European standard EN 14624


  • Refrigerants detected: R-134a, R-410a, R-404a, R-407c, R-507, CFC-12 (R-12 or Freon 12), R-22 (Freon) and R-1234yf
  • Sensitivities: 0.05 oz./yr (1.4g/yr) to R-134a; 0.025 oz./yr (0.7g/yr) to R-22
  • Warmup time: <20 seconds
  • Sensor life: >300 hours (ten years’ normal use)
  • Battery life: Five hours of continuous operation (typical)
  • Display size and type: 0.6 in. (15mm) high 7-segment red LED
  • Probe length: 17 in. (432mm)
  • Weight: 1.5 lb. (680g)
  • Power source: Four "AA" batteries (included)


  • Leak check vial
  • Batteries
  • Custom hard plastic carrying case
  • 2-year limited warranty (including sensor)


  • 6.8 x 2.6 x 2.2 in. (173 x 66 x 56mm)