VDO-168 Networking Smoke Detector(photoelectric type) Technical parameter: Signal outputting method: Networking Operating voltage: 9VDC Operating current: static state<10μA, work state: 20-25UA Sensitivity: accord with UL217 standard; the test value of factory: the sensor reacts when lime soil reaches 3.2% per inch. Alarm volume: 85db far from 10 feet Phonic and photic alarm: open or close signal Emissive frequency: 315M/433M Working environment: -5℃~50℃ Air interface temperature: 10%-90%    Size: 105mm*38mm

This product applies special chips with the function of intelligent control and self-examination and is reliable. Phonic and photic alarm or other kinds of signal outputting methods. That is to say, it can be used either independently or match with burglar alarm, building talkback and other control systems.