... meter 2.Water proof and anti-attack 3.Export to many countries 4.OEM 5.CE, ... Life≥100,000 TimesAlarm WayClose ValveAlarm Volume50m³/2 m³Static Working Current≤20μAWorking ... , left entrance, G1.6/2.5/4.0FQ-SR---steel shell, LCD display, right entrance, G1.6/2.5/4.0FQ-SB--- ... steel shell, LCD display, left/right entrance, gas leaking alarming port, G1.6/2.5/4.0 Remote Gas Meter G1.6 ...