... reset/reset after power off We Name:Networked Photoelectric Type Smoke Detector(DC12V)Feature1.Test by band/auto-reset2.Infrared optical sensor3 ... .C/N.O. optionalSize107*35mmBusiness TypeManufacture Product/Service (We Sell)Detector series,horn series,flash lamp,burglarsystem,security accessory series,CCTV ...