Electronic (Industry) has been a leading and professional developer and manufacturer of Alarm line for several years, located in Ningbo, China, specialized in Liquefied Petroleum Gas (LPG) leakage detectors/alarms, Natural gas (NG) leakage detectors/alarms, Gas valves, Gas pressure regulating, Gas valve mechanical Hand, Carbon Monoxide(CO) gas leakage detectors/alarms, Smoke alarms, PIR lens, PIR sensor, Gas discharge series, Fire s......