9V Battery Photoelectric Smoke Alarm with 10 Years Life Detector Test Button 2 pack

Product power:The Photoelectric Smoke Alarm With 10 Years Life.The power supply is powered by a replaceable 9 V backup battery.It can be used continuously for 1 year and can be replaced when the power is low. Product safety performance：Product safety performance: the photoelectric smoke alarm complies with en14604 standard and as3786 standard. In case of danger, the smoke alarm will sound 85 dB. Product function：When the battery is low, the smoke alarm will sound to remind you that it is time to replace the equipment. Product installation：The smoke alarm device is easy to install and adopts inverted installation, which is simple and stable. Product packaging：2xSmoke Alarm，2x 9V 1 year replaceable battery，4xPegs，4xScrews., Manufacturer: Ruan