Carbon 9V Battery Optical Smoke Detector With MCU Processing

Carbon 9V Battery Optical Smoke Detector With MCU Processing Model:LYD-614W Quick Details: 1.LED indicator 2. Test & Hush button 3. Low battery indication Description: * Wireless Transmission with Home Alarm System * Convenient Installation, Easy Operation * Hush Button; 220V or 110V AC + 9V Battery * Infrared photoelectric sensor * MCU processing * Auto-reset after smoke clears * Sound & flash alarm * LED indicator * Test & Hush button * Low battery indication * Dustproof,