北京2019-07-01实施的DB11/T1620-2019《建筑消防设施维修保养规程》，这次很清楚的规定了消防应急照明和疏散指示标志、可燃气体探测报警系统、电气火灾监控系统等一些消防设备/器材的具体报废年限。
Detected Gas : Methane
Detection Principle : Catalytic Combustion
Display Type : None
Product Dimensions:117mmx90mmx81mm
Explosion-Proof Mark : Ex db ll C T6 Gb; Ex tb lllC T80°C Db
Executive Standard : GB 15322.1-2019
Instruction Manual
Detected Gas：Methane
Detection Principle：Catalytic Combustion, Infrared
Display Type：None
Product Dimensions：177mmx140mmx80mm
Explosion-Proof Mark：Ex db ll C T6 Gb; Ex tb lllC T80°C Db
Executive Standard：GB 15322.1-2019
Product Dimensions：148mmx155mmx75mm
Detected Gas：Methane,Propane
Detection Principle：Catalytic Combustion
Product Dimensions：117mmx90mmx81mm
Detected Gases：Methane, Flammable Gases, Toxic Gases
Detection Principle：Catalytic Combustion, Infrared, Electrochemical, Semiconductor
Display Type：LCD
Product Dimensions：155mm x 150mm x 80mm
Executive Standard：GB 15322.1-2019、GB12358-2024
产品使用说明书
Product Dimensions：177mm x 140mm x 80mm
Product Dimensions：148mm x 155mm x 75mm
