Detect dangerous gas leaks with the Klein Combustible Gas Leak Detector (ET120). This detector is equipped with 5 LED’s and an 85db audio alert to help you track down the source of the leak quickly. With a range of ~50 to 10,000 ppm you won’t miss a thing. Two levels of detection allow for versatility in the field and automatic zero-point calibration on start up make sure the tool is ready when you are.