Smoke alarm RWM 250 tested according to EN 14604: 2005/AC:2008 Sensor for optical smoke detection and a sensor for temperature measurement Suitable for kitchens Built-in 3V lithium battery with up to 12 years battery life Easy adhesive mounting using modern magnetic gel adhesive pad technology with additional optional fastening material (thin double-sided adhesive film) according to vfdb 14-01 Classic drilling mounting is still possible, Smoke alarm RWM 250