This combustible gases detector can detects a lot of flammables gases such as methane, CO, natural gases, propane and so on. This gases leak detector can be widely used for pipeline leak detection, household daily maintenance, etc. If you are interested in this product, come and have a try, it will not let you down. Three Color Light Alarm: The green light on means slight gases leak, the orange color on means the moderate gases leakage and the red light on means severe gases leakage. Ambient Temperature Humidity Measuring: This gases leak detector can not only detect the leakage gases for you, but show the temperature and humidity for you at the same time. Various of Combustible Gases Detection: This gases leak detector can detect a lot of flammables gases such as methane, CO, natural gases, propane and so on. Wide Applications: This gases leak detector can be widely used for pipeline leak detection, household daily maintenance, danger items storage warehouses and so on. Specifications: Material: ABS Combustible gases detection : 300~10000ppm(Reference medium is methane) Response sensitivity: 50ppm Response time: 2s. Warm-up time: 30s Ambient temperature test: Ranges: -10~60(14~140 #xff09; Accuracy: 0.1(0.2) Resolution: 0.1(0.2 #xff09; Automatic shutdown: about 5 minutes Power: 2 * AAA batteries (NOT INCLUDED) Package size: 190 * 40 * 30mm / 7.5 * 1.6 * 1.2in Package weight: 120g / 4.2ounce Packing list: 1 * Gases Detector 1 * User Manual 1 * Storage Bag