stocks photoelectronic smoke detectors fire alarm sound for home hotel security w/ red led warning 1
stocks! 5-7 to united states!!!<br><br>the photoelectric detector detects the smoke by a couple of infrared diodes.<br>the principle of detecting is granule in the smoke can reflect infrared light.<br>infrared diodes are placed in the special chamber.<br>the chamber can shield external light,but dont affect the smoke into it.<br>while have no smoke,the diode can receive very weak infrared light.<br><br>features:<br>*test by hand.<br>*auto reset.<br>*asic adopted.<br>*anti-light.<br>*strong adaptability circumstance.<br>*smt design,high stability.<br>*all-round detection angle<br>*suitable for home, office, hotel, etc.<br><br>specifications:<br>product name: photoelectronic smoke detector<br>operating voltage: dc 9v <br>static current: ≤10ua<br>alarm current: 20-5ma<br>indicate alarm: red led flash<br>sound level: ≥85db/m10ft distance<br>low pressure alarm: 6.8v<br>operating temperature: 4°c~50°c 40℉-120℉<br>operating humidity: ≤95%rh<br>detecting area: 20 square meter<br>installation height: ≥6m<br>alarm output: sound!#!amp!*!flash alarm<br>size: 113x38mm<br>color: white<br>weight: 138g<br><br>package included:<br>1x photoelectronic smoke detector with accessories<br>1x manual for photoelectronic smoke detector<br>1x mount<br>2x screws