Combination Carbon Monoxide & Smoke Alarm

Power Source: Hardwired Language: French Unique and patented device helps stop false alarms, without restricting legitimate alarms On model with optional horn, when cover is lifted it sounds a piercing 105 dB warning, drawing attention to the area or pranksters Horn will sound until cover is snapped back onto the frame (or for the life of the battery)|High strength piano hinge Clear, tamperproof, tough polycarbonate shield and frame fit over pull station or call point UV-stabilized covers are for indoor or outdoor use Ideal for schools, hospitals, nursing homes, public transport, stores, hotels or any public area with an exposed fire pull station Flush or surface mount, with or without internal horn Sized to fit most pull stations