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Extech EZ40 EzFlex Combustible Gas Detector

Extech EZ40
5 of 5


  • 16" (406mm) gooseneck for easy access into hard to reach places
  • High Sensitivity
  • One hand operation with thumb controlled sensitivity adjustment, to eliminate background gas levels
  • Visible and audible alarm at 10% (LEL) Lower Explosive Limit for methane
  • Locate the smallest leaks
  • Complete with 3 "C" batteries
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List Price: $129.99
Sale: $97.49
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Product Information

The Extech EZ40 EzFlex Combustible Gas Detector offers a quick and easy way for HVAC engineers to identify and pinpoint gas leaks. The Extech EZ40 has a 406mm (16 inch) flexible, goose neck that allows access into hard to reach locations and provides simple one-handed operation with a thumb controlled sensitivity adjustment dial that can be used to eliminate background gas levels. The EZ 40 combustible gas meter can detect an impressive range of 17 different gases and has both visible and audible alarms at 10% lower explosive limit (LEL) for methane. Locate even the smallest of gas leaks with the highly sensitive and versatile Extech EzFlex gas leakage detector.

Gas Detected

  • Natural Gas
  • Methane
  • Ethane
  • Propane
  • Butane
  • Acetone
  • Alcohol
  • Ammonia
  • Steam
  • Carbon Monoxide
    (not to quantify)
  • Gasoline
  • Jet Fuel
  • Hydrogen Sulfide
  • Smoke
  • Indutrial Solvents
  • Lacquer Thinner
  • Naphtha


General Specifications
Pump Driven Field Calibration Range 10ppm
Sensor Type Solid State
Alarm Visible and Audible @ 10% LEL for Methane
Warm-up Approx. 1 minute
Response Time < 2 seconds (up to 40% LEL)
Duty Cycle Intermittent
Battery Life 8 hours continuous use typical
Dimensions 8.7 x 2.83 x 1.8" (221 x 72 x 46mm)
Weight 18.4 oz (572g)

Extech EZ40 Product Specifications Summary:
(for full specs please see the full specs tab or the data sheet)

Gas Detection/Combustible Gas Detector Template

Gases DetectedAcetone, Butane, Gasoline, Industrial Solvents, Methane, Naptha, Propane

Test Equipment General Attributes

Warranty1 YEARS
Calibration IncludedFactory Calibration
Power Supply VoltageBattery Powered
Safety ApprovalCE
Battery TypeC
Country of OriginChina


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