Home / Fire Safety / Fire Alarm / Residential Fire Alarms / Other Manufacturers Product Description Advanced Thermistor Detection controlled by bespoke software Interlinkable with FHB10W Optical Smoke Alarm Comes with sealed-in 10 year battery 7 year warranty (10-year life alarm) Kitemarked to BS 5446-2 Dimensions: 90 x 73mm Specifications MPN WHD1/FH Brand Fire Chief Product Code 117-1103 Customer reviews No reviews left yet Write A Review Sort byMost RecentTop Rated Delivery & Returns Free UK Delivery over £250Returns Policy: The company operates a 14 day returns policy, products returned in an unopened / undamaged condition will be refunded. Customer Reviews WIRELESS HEAT ALARM Product Code 117-1103 £63.84 £76.61 (inc. VAT) Login to add this product to your wishlist.