D440A - Refrigerant Gas Leak Detector

Techno Tools’ D440A features a long life heated sensor technology that is designed to detect the more current and difficult HFC refrigerants such as R-134a in addition to all HCFC and CFC refrigerants including hydrocarbon “blends”. The D440A’s unique digital leak size indicator takes the guesswork out of whether or not to repair a small leak. The digital display is independent from the audio alarm and sensitivity level, allowing the precise pinpointing of the leak source. The D440A does not require rechargeable batteries.


  • Long life, stable sensor
  • Unique numeric leak size indicator
  • Automatic calibration and reset to ambient levels
  • 3 adjustable sensitivity levels
  • Visual LED leak alarm located near sensor
  • True mechanical pump
  • Low battery indicator
  • Uses 4 AA alkaline batteries
  • Audio mute function
  • Comfortable neoprene grip
  • SAE J2791
  • CE Certified
  • Made in USA
  • 2- year warranty includes sensor
  • Rugged carrying included
  • Euro Standard EN 14624

D440A Specifications

Leak Detector, Refrigerant Gas
Sensitivity .05 oz/yr R134a
Sensor Life > 300 hours
Response Time Instantaneous
Power Supply 4 AA Alkaline batteries
Battery Life 8 hours continuous
Warm up time < 20 seconds
Probe length 17 inches
Numerical Display 7 segment digital display (1 to 9)
Weight, lbs 1.5 lbs
Warranty 2 years (includes sensor)


Download Freewww.bigtheme.net/joomla Joomla Templates Responsive