HomeProduct Number of batteries1 Lithium Polymer batteries required. (included) 1 Lithium Polymer batteries required. (included) Filter Showing all 2 results Default sorting Sort by popularity Sort by average rating Sort by latest Sort by price: low to high Sort by price: high to low Sort by editor review Added to wishlistRemoved from wishlist 0 Add to compare Door Window Sensor: Smart Tuya Door Sensor Free App Real-time Alerts, Wireless WiFi Window Contact Sensor for Home Security & Smart Home Automation, Support for Alexa Google Assistant (1-Pack) Added to wishlistRemoved from wishlist 0 Add to compare £9.41 Added to wishlistRemoved from wishlist 0 Add to compare frient Smart Siren | Intelligent Indoor Home Security Alarm | 90 dBm | Burglar Protection | Battery Backup | Zigbee Range Extender | Consumer Electronics | Works with SmartThings and Homey Added to wishlistRemoved from wishlist 0 Add to compare £99.88 Original price was: £99.88.£53.90Current price is: £53.90. 46%