Third Reality's Zigbee Motion Sensor is a budget PIR sensor that runs about two years on two AAA batteries, detecting motion up to 20 feet away for basic lighting automations.
Entities in Home Assistant
4 entities via zigbee2mqtt
Primary entities 1 What automations and dashboards use.
| Entity | Type | Device class | Unit |
|---|---|---|---|
| Occupancy | binary_sensor | occupancy | — |
Diagnostics 3 Health and troubleshooting values, hidden from dashboards by default.
| Entity | Type | Device class | Unit |
|---|---|---|---|
| Battery low | binary_sensor | battery | — |
| Battery | sensor | battery | % |
| Voltage | sensor | voltage | mV |
From the zigbee2mqtt device database (zigbee-herdsman-converters
26.118.0):
the entities zigbee2mqtt creates for
3RMS16BZ.
Paired through ZHA instead, the same hardware produces a different set.
Where to buy
Recipes using this device
Away Motion Camera Alert
Installs Home Assistant automations that watch for motion while the house is armed and send you a notification with the camera view attached. Add presence sensors to arm and disarm on their own, a siren to sound off, and lights to flash.
Motion Hallway Light
Installs a Home Assistant automation that turns a hallway or landing light on when motion is seen and off again once the space has been still for a grace period you set. Add a light sensor and it only runs after dark, add a presence sensor and it holds the light while someone lingers.