← Sensors
frient
frient Intelligent Smoke Alarm (SMSZB-120)
Zigbee2MQTT / ZHALocal control
- Zigbee
Verified July 2026
The Zigbee smoke alarm to buy in the UK: Danish-made (Develco), EN 14604 certified, works out of the box in Zigbee2MQTT including triggering its 85dB siren from Home Assistant — so it doubles as an intruder sounder. Treat it as a smart companion to, not a replacement for, your interlinked mains alarms.
Specs
- power
- Replaceable battery, circa 5 years
- siren
- 85 dB, controllable as a Zigbee siren entity
- sensor type
- Smoke alarm (optical) with temperature
- certification
- EN 14604
Affiliate disclosure: Some links in this article are affiliate links. If you buy via one of these links, we may earn a small commission at no extra cost to you. This never affects our editorial decisions — see our affiliate policy.