The Yale Smoke Detector allows you to Synchronise your home protection with your fire protection.Features (When used with SYNC ALARM range)When it detects smoke both the in-built siren and alarm will trigger.In built heat sensor that is visible in the appPIR Motion detection built in, activating the alarm when motion is detected and will work up to 200m away from the control panel.Inside the box1 x Smoke DetectorBatteriesFixing PackCompatible with Yale Sync & Intruder Alarm Range (IA) Features Product colour White Maximum operating distance 200 m Connectivity technology Wireless Measuring parameters Motion, Temperature Power Power source Battery