SONOFF Zigbee SenseGuard Indoor Siren SNZB-09P

The SONOFF SenseGuard Indoor Siren (SNZB-09P) is a compact Zigbee 3.0 alarm that sounds and flashes when a linked sensor trips.
Up to 105 dB, with 4 volume levels
10 tones, so a leak does not sound the same as a break-in
Red flashing light, on its own or with the siren
Alarm time from 1 second to 15 minutes
USB-C power plus a built-in battery that takes over in a power cut (300+ days in silent mode)
Tamper alert if the unit is pulled off its base
Works with SONOFF eWeLink, Home Assistant (Zigbee2MQTT or ZHA), and other Zigbee 3.0 hubs
A Zigbee hub or coordinator is required