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KLEIN TOOLS

Combustible Gas Leak Detector

Mfg.#
ET120
Sku#
4238127
  • Detection range: Approximately 50 to 10,000 ppm* (*based on Methane)
  • Two levels of sensitivity: High (approximately 50 to 1000 ppm) and Low (approximately 1000 to 10,000 ppm)
  • Five red LED's (visual) and 85dB audible alerts that increase with gas concentration
  • Automatic zero-point calibration at power-up (lights will flash during self-calibration; this does not indicate the presence of gas)
  • 18-Inch flexible gooseneck expands sensor's reach; clips onto meter for storage

* Estimated stock levels as of Mon, Mar 16, 2026. All items subject to prior sale. Prices may vary between stores and online. Please call ahead to confirm availability of items marked as Limited Stock.

Description

The ET120 is it the perfect choice for HVAC professionals. It is an easy-to-use tester that provides audible and visual alarms in the presence of methane, propane and other combustible gases at concentrations as low as 50 ppm. It features two levels of sensitivity depending on users' needs: High (approximately 50 to 1000 ppm) and Low (approximately 1,000 to 10,000 ppm).

Specifications

General

Display Digital
Includes Gas Leak Detector; Batteries; Carrying Pouch
Overall Height 2.75 in
Overall Length 28.31 in
Overall Width 1.78 in
Power Source 4 x AAA
Type Gas Leak Detector

Manufacturing Details
The following information is subject to change without notice

Manufacturer Warranty Two years from the date of purchase
Shop USA Yes

Dimensions

Weight 13 oz

Label Information

Precautionary Statement CAUTION: Gas Detector is NOT intended for use as personal protective equipment (PPE) Read, understand and follow all instructions to ensure safe operation Always turn on the gas detector in an area known to be free of combustible gases

Videos

Related Documents

Brochure (PDF)

Msds (PDF)

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