Wireless Interlinked Battery Alarm Pack - 2 Smoke & 1 Heat

The Wireless Interlinked Battery Alarm Pack – 2 Smoke & 1 Heat provides reliable whole-home fire protection without the need for mains wiring.

This kit includes two wireless interlinked battery smoke alarms and one wireless interlinked battery heat alarm, creating a coordinated alarm system that sounds throughout the property when any device is triggered.

Designed for domestic homes, flats, HMOs and rental properties, this pack is ideal for protecting circulation spaces such as hallways and landings with smoke detection, while providing heat detection in kitchens or garages where smoke alarms may be unsuitable.

All alarms are wirelessly interconnected. When one unit activates, every alarm in the network sounds simultaneously, ensuring occupants are alerted no matter where the fire starts.

Each device is powered by a sealed 10-year lithium battery, removing the need for wiring while providing long-term, low-maintenance protection.

What’s Included

• 2 × DHI-HY-SA40A-R8 Wireless Interlinked Smoke Alarms

• 1 × DHI-HY-HT10A-R8 Wireless Interlinked Heat Alarm

• Wireless interconnection across all devices

• Up to 24 WisuAlarm devices can be interconnected

• Sealed 10-year lithium batteries in all units

• 85 dB audible alarm output (all devices)

• Split-spectrum photoelectric smoke sensing

• Class A1 heat detection (54°C–65°C)

• Test and silence function

• Low battery warning