GS40 | Electronic Combustible Gas Leak Detector (Discontinued)

Handheld Electronic Combustible Gas Detector

General Details

The GS40 is a low maintenance, easy-to-use, and completely self-contained combustible gas leak detector designed to pinpoint gas leaks in the most demanding applications. An efficient and sensitive gas sensor is combined with solid-state circuitry which provides an audible alarm that increases in pitch as the concentration of the gas increases. An advanced semiconductor sensor and electronic control package enables detection of gases commonly found in service applications including: carbon monoxide, natural gas, propane, ammonia, methane, acetone, hydrogen, and iso-butane, with a virtually instantaneous alarm response period. Applications include the inspection of furnaces, valves, regulators, pipelines, meters, and other devices associated with combustible gas. A visual indication is also provided as well as provisions for an earphone for use in noisy environments. The GS40 is designed and manufactured in the USA with U.S. and globally-sourced components.


Gas Detector Features:

  • Alarm Indication: Both visual and audible (>40db) alarm indicators
  • Sampling: Natural diffusion
  • Sensitivity: 25 TO 1000 PPM, depending on the type of impurity
  • Sensor Warm Up Time: Approximately 30 seconds
  • Response Time: Less than 20 seconds
  • Operating Temperature: 15 ˚F to 104 ˚F (-10 ˚C to 40 ˚C)
  • Power Requirements: 4 AA alkaline or NiMH batteries
  • Battery Life: Approximately 20 hours with AA alkaline batteries and 10 hours with NiMH.
  • Weight: 13.5 Oz. (380 g.)
  • Dimensions: 8 in. x 2.7 in. x 1.5 in. (20.3 cm. x 6.9 cm. x 3.8 cm.)
  • Probe Length: 18 in. (46 cm.)
Detecting Range0 – 100% LEL referenced to methane.
Alarm IndicationBoth visual and audible (>40db) alarm indicators
Low Level AlarmPreset at 10% Methane LEL
High Level AlarmPreset at 30% Methane LEL
Operating Conditions0°F to 140°F (-20°C to +40°C) at less than 98% RH (non-condensing)
Power3VDC working voltage using four 1.5V AA batteries
Battery Life/Indicator20 hr continuous use. Orange LED constant on when low battery
SamplingNatural diffusion
Dimensions7.2″ x 0.71″ (183 x 18 mm)
Weight18 oz (500g) including battery
Replacement Parts
GSXS4Replacement Sensor Element for GS40
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