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 Gases Natural Gas, Methane, Benzene, Ethane, Propane, Butane, Acetone, Alcohol, Ammonia, Gasoline, Jet Fuel, Industrial Solvents, Lacquer, Paint Thinner, Naptha
Sensitivity 5ppm (Gasoline)
General Specifications
Sensor Type Heated semiconductor gas sensor
Display Tricolor LED bar indicator
Alarm Audible (buzzer) and Visual (bar indicator)
Sensitivity Settings Low and High
Warm-up Time 10 seconds
Response Time Less than 1 second
Auto Shut-off Yes (after 10 mins)
Low Battery Indicator Yes
Power Supply 4 AA batteries
Battery Life Approx. 40 hours
Product Certifications CE, RoHS
Probe Length 15" (390mm)
Operating Temperature 32 to 104°F (0 to 40°C)
Storage Temperature 14 to 140°F (-10 to 60°C)
Operating Humidity Range 10-70%
Dimensions 8.5 x 2.6 x 2.2" (217 x 66 x 56mm)
Weight 9.3 oz (265g)