Mercury HD-718 Heat Alarm, 10 Year Sealed Battery, Electronic Thermistor Sensor, 85dB Alarm

Mercury HD-718 Heat Alarm 10-Year Sealed Battery Overview

The Mercury HD-718 Heat Alarm is an essential safety device designed to provide reliable fire protection for homes in England and Wales. Unlike traditional smoke alarms, this heat alarm uses advanced electronic thermistor sensing technology to detect rapid temperature increases, making it ideal for kitchens, garages, and areas where smoke or steam could cause false alarms. Featuring a built-in 10-year sealed lithium battery, this unit offers long-lasting, maintenance-free operation without the need for frequent battery replacements. Its convenient mute function allows users to temporarily silence the alarm when needed, while the low battery warning ensures you stay protected at all times. Designed for easy installation, this compact and lightweight device delivers dependable fire safety for years to come.

Built to meet the stringent requirements of BS 5446-2:2003, the Mercury HD-718 Heat Alarm is rigorously tested for optimal performance. The alarm activates at temperatures between 54°C and 70°C, ensuring prompt detection of potential fire hazards. Emitting a powerful 85dB alarm output at 3 metres, this device ensures clear and immediate alerts in emergency situations. Weighing just 116g and measuring 116mm in diameter with a 46mm height, its discreet design blends seamlessly into any home environment. Suitable for residential properties in England and Wales, this heat alarm is an excellent choice for kitchens, boiler rooms, and other high-risk areas where standard smoke alarms may not be effective. With its automatic reset function and hassle-free operation, the HD-718 provides peace of mind for a full decade.