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Features: 1) With high capability and low consumption PIC16F676 single chip, adopting perfect design of software and hardware, the product has high self-check and anti-jamming function, strong reliability 2) We program into chip by ourselves. So our smoke detector has strong stability, can not misinform alarm 3) Using the advanced photoelectric smoke inductive technology, it can give alarm if smoke reaches certain thickness 4) With 9V battery, low consumption, normally a section dry battery can use one year above at least 5) This product has no use wire, easy installation, international popular style and beautiful feature, can give alarm both sound and light at the same time 6) Technique parameter: a) Operating temperature: -10 - 55° C b) Operating humidity: <95% RH (45° C) c) Operating voltage: DC 9V d) Operating current: 30? A (stakeout) 20m A (alarm) e) Sensitivity: ?0.8d B/m f) Alarm sound level: ?90d B/m 7) State: a) Alarm: indicator light is red; flashing rate 2times/sec; buzzer sounds 2times/sec b) Normal: indicator light is green; flashing rate 1time/20sec, buzzer silent c) Fault: indicator light is green; flashing rate 1time/20sec; buzzer sounds 2 times d) Self-check: after press the button, indicator light is green; flashing rate 2times/sec; buzzer sounds 2times/sec
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