Aqara Temperature & Humidity Sensor
Aqara Temperature & Humidity Sensor
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Aqara Temperature & Humidity Sensor
Temperature, humidity and air pressure in a 36 mm square. The data source for climate automations: bathroom fans, heater schedules, mould alerts.
/ specifications
| sensors | temp ±0.3 °C, humidity ±3 %, pressure |
| battery | CR2032, ~2 years |
| size | 36 × 36 × 9 mm |
| works when internet is down | YES |
| protocol | Zigbee 3.0 |
| home assistant | ZHA / Zigbee2MQTT |
/ entities in home assistant
Exactly what appears in your HA instance when this device pairs — no surprises.
| sensor.*_temperature | Temperature °C (±0.3) |
| sensor.*_humidity | Relative humidity % |
| sensor.*_pressure | Air pressure hPa |
| sensor.*_battery | Battery % |
when the internet dies
Readings keep logging locally; climate automations keep acting on them.
/ common questions
Does it need a hub? Yes — Zigbee/local devices pair to your coordinator and Home Assistant. No vendor app, no cloud account.
Battery life real-world? The spec table is our honest estimate; heavy-traffic placements run shorter. Batteries are standard coin cells.
Returns? 30 days change-of-mind (unopened) plus full Australian Consumer Law cover on faults.
In real homes
/ home assistant entities
Exactly what appears in Home Assistant after pairing — * is the name you give the device.
| entity | what it does |
sensor.*_temperature | Temperature °C (±0.3) |
sensor.*_humidity | Relative humidity % |
sensor.*_pressure | Air pressure hPa |
sensor.*_battery | Battery % |