... Stainless steel material with blast proof Car-carried Natural Gas Alarm DetectionIt adopts ... gas concentration reaches the presetting level in the car or bus or other vehicles. It reminds ... avoid fire, explosion, suffocation, death and other malignant accidents. 1. SpecificationApplicationTaxiBus, other vehiclesWorking parameterTemperature4070Humidity095%RHPowerDC9VDC24Vbattery back upCurrent100mAMax ...