REED C-383 Combustible Gas Leak Detector


This combustible gas leak detector is capable of detecting a number of gases including: natural gas, methane, benzene, ethane, propane, butane, acetone, alcohol, ammonia, gasoline, jet fuel, industrial solvents, lacquer, paint thinner and naptha. The C-383 can detect leaks as small as 5ppm of gasoline.


  • Detects a wide range of combustible gases including: gasoline, propane, natural gas and fuel oil
  • Quick response and high accuracy detects small leaks
  • 15" (390mm) gooseneck for hard to reach areas
  • Designed for one-handed operation
  • Ambient concentration reset function
  • User adjustable sensitivity (High/Low)
  • Tricolor visual indicator
  • Audible (buzzer) and visual (LED) alarm indicators
  • Self test sequence on start-up
  • Low battery indicator and auto shut off
  • User replaceable sensor


Detected GasesNatural Gas, Methane, Benzene, Ethane, Propane, Butane, Acetone, Alcohol, Ammonia, Gasoline, Jet Fuel, Industrial Solvents, Lacquer, Paint Thinner, Naptha
Sensitivity5ppm (Gasoline)
General Specifications
Sensor TypeHeated semiconductor gas sensor
DisplayTricolor LED bar indicator
AlarmAudible (buzzer) and Visual (bar indicator)
Sensitivity SettingsLow and High
Warm-up Time10 seconds
Response TimeLess than 1 second
Auto Shut-offYes (after 10 mins)
Low Battery IndicatorYes
Power Supply4 AA batteries
Battery LifeApprox. 40 hours
Product CertificationsCE, RoHS
Probe Length15" (390mm)
Operating Temperature32 to 104°F (0 to 40°C)
Storage Temperature14 to 140°F (-10 to 60°C)
Operating Humidity Range10-70%
Dimensions8.5 x 2.6 x 2.2" (217 x 66 x 56mm)
Weight9.3 oz (265g)