gas detector,gas alarm,gas sensor: 1.GBAT-C Gas detector have good quality and low price 2.CE 3.5 year warranty gas detector,gas alarm,gas sensor technical parameters:*Induced Gas: Natural gas, Coal ... Transmitting Distance: ≥10m*Power Consumption: ≤3W GBAT-C Gas Detector,Gas Alarm,Gas sensor adavntage:This Gas detector with shut-off value is easy to install by common ...