Shenzhen Heiman Technology Co. Limited

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4 Wire Conventional Optical Smoke Detector, Used in Fire Alarm System, Supports Relay Output	2017 new 220V kitchen cooking gas leak detector	2017 new 220V natural gas sensor with valve	10-year lifespan lithium battery operated independent EN14604 VDS smoke alarm
Hot LPCB EN54-7 Approved Wired Fire Alarm Detector, House Fire Detection System	AC 220V CE Network Natural Gas LPG Detector with Shut-off Valve, Malfunction Auto-check Indicator	2017 hot selling factory price LPCB EN 54-7 24V smoke detector	Zigbee HA1.2 CA detector co alarm z-wave carbon monoxide sensor