Introducing the RF-Smoke Detector which combines cutting-edge optical sensing with thermal enhancement. This innovative approach ensures a faster response to all types of fires, eliminating the need for ionisation sensors that can be harmful to the environment. For optimal safety, smoke alarms should be installed in the main circulation areas on each level of the property, such as hallways and landings. Additionally, place them in high-use rooms like living rooms and bedrooms. Pair these with heat and carbon monoxide alarms for complete home protection. The devices communicate effortlessly with the control panel using SecureWave wireless technology. This integration activates the sounders of all similar heat and smoke alarms on the premises, creating a robust and reliable safety network. Features FireAngel ST-632 Smoke Alarm Integrated with HKC RF-Module Thermoptek Multi-Sensor optical sensing technology Intelligent status monitoring 10 year, sealed-for-life onboard battery Replaceable battery in RF-Module (Typically >3 years battery life) Incorporates 85dB siren Integral test button, or can be tested from Panel