WisuAlarm Interlinked Battery Smoke Alarm (10 Pack)

The WisuAlarm Interlinked Battery Smoke Alarm 10 Pack (DHI-HY-SA40A-R8) provides reliable, compliant F1 fire protection for domestic properties, landlords and developers.

Each alarm operates independently or can be wirelessly interconnected with up to 24 WisuAlarm smoke, heat, or carbon monoxide detectors for full-property coverage.

When one unit activates, all connected alarms sound simultaneously, giving faster warning across every room.

Using advanced split-spectrum sensing, these detectors identify both slow-smouldering and fast-flaming fires quickly while reducing false alarms.

Each alarm is powered by a sealed 10-year lithium battery, offering long-term, maintenance-free operation without the need for mains wiring.

For additional peace of mind, the system can be linked to the optional WisuAlarm Internet Gateway to send real-time alerts straight to your phone.

Supplied as a 10-pack, this bundle is ideal for multi-room installations, rental upgrades, or contractors fitting interlinked smoke alarms across multiple properties.

• 10 pack

• Wireless interconnect with up to 24 enabled devices

• DHI-HY-SA40A-R8

• Split-spectrum sensor technology

• Grade F1 device

• 10 Year Sealed Lithium Battery

• Test and hush features in one single button

• Loud sound output over 85 dB(A) at 3 meters

• Low battery warning signal

• Easy installation

• Remote controlled silence option