Hispec Smoke Alarm Detector BP/RF10-PRO 10 Year Battery Interlinked RF Optical

10-year sealed, tamper proof lithium battery-powered smoke alarm with built-in radio frequency technology for wireless interconnection. High quality optical sensor for optimal smoke detection, with fewer false alarms. Can be wirelessly interconnected with up to 20 total Hispec RF10-PRO radio frequency fire safety devices, including smoke, heat and CO alarms (when one alram sounds, intercomnected alarms will also trigger). Suitable for use in hallways, landings, living rooms, dining rooms and bedrooms.