Wireless Smoke Detector Security Alarm Sensor System Home Battery Operated

Features: Low-battery warning. Auto-Reset after trigger. Infrared photoelectric sensor. Adopt MCU Auto-processing technology. Sound & Flash alarm & LED indicating Alarm. SMT Manufacture Technology, reliable stability. Dust-proof, mothproof and anti white light interference. Specification: Material: ABS Color: White + Red Power supply: 2 x 1.5V AA batteries(NOT included) Static current: 5m/s) 2. Insert the ready battery into the battery cabinet, notice the place of anode and cathode 3. Choose a proper position. Normally, the center of the detection area ceiling is recommended. Fix the detector base into the chosen position. Then put the detector into the base and twist to fasten it. Be sure it is fastened tightly Package included: 1 x Smoke Detector (Battery not included) 1 x Pack of screws accessories Detail Pictures: