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VDS Approved Infrared Photoelectric 3V Li-battery Smoke Alarms for Home Fire Detection System	3v Lithium 10 Years Battery Operated Smoke Detector EN14604	High sensitivity smart home automation Zigbee CO detector alarm from Shenzhen Heiman	Heiman ZigBee Approved HA1.2 Photoelectric Smoke Detector, EN14604 Approved
2017 hot selling factory price LPCB EN 54-7 2 wire smoke sensor with relay output	Smoke detector alarm, detectors en14604 approved	Promotional 3V battery operated smoke and CO detector	2017 hot sale 9 V battery 315 MHz wireless smoke sensor