Key Features. Yale Smoke Detector means that you can Synchronise your home protection with your fire protection. When smoke is detected both the in-built siren & alarm will trigger. In built heat sensor that is visible on the app Works up to 200m away from the control panel. Heat sensor sends a signal when the temperature changes Fully Wireless design 200m Range Sync and; Intruder Alarm Accessory The Yale Intruder Alarms secure your home & alerts you when your alarm is triggered. The extended 200m wireless range enables you to protect out buildings as well as your home. The intuitive wireless system has been designed with DIY in mind ensuring the Intruder Alarms really are easy to fit. No wiring or running cables in walls or under the carpet & you won't the services of a qualified electrician. What's in the Box. 1 Smoke Detector Batteries Fixing Pack. Compatible with Yale Sync and; Intruder Alarm Range (IA Range)..