LED doesn't flash during pairing Hub can't find sensor Pairing times out

Reset sensor - Hold reset button with pin for 5 seconds until LED flashes. Fresh battery - Install new CR2032 battery before pairing. Close to hub - Keep sensor within 10 feet of Aqara hub during pairing. Hub in pairing mode - Start "Add Accessory" in Aqara Home app first. Zigbee hub required - These are Zigbee sensors; requires compatible hub.

Temperature stuck on one value Updates very slowly Humidity shows 0 or 100

Change threshold - Sensor reports on change (typically 0.5°C). Static environment = fewer updates. Battery level - Low battery reduces reporting frequency. Replace if below 20%. Force update - Press the button once to force an immediate reading. Check Zigbee mesh - Weak mesh connection causes missed reports. Add Zigbee routers.

Temperature off by several degrees Humidity doesn't match other sensors Inconsistent readings

Placement matters - Avoid direct sunlight, heat sources, drafts, and exterior walls. Calibration offset - Use Home Assistant or hub settings to apply offset if consistently off. Sensor equilibration - After battery change or move, allow 30 minutes to stabilize. T1 pressure - T1 model includes pressure which can help identify sensor drift.

Not appearing in Apple Home Readings not syncing Automations not triggering

Hub required - Sensor appears in HomeKit through Aqara Hub, not directly. Expose to HomeKit - In Aqara Home, verify sensor is set to appear in HomeKit. Automation threshold - HomeKit automations may have temperature thresholds. Verify settings. Hub connection - Ensure Aqara Hub is connected to HomeKit successfully.

Aqara Temperature and Humidity Sensor Not Reporting

Aqara Temperature and Humidity Sensors provide environmental monitoring via Zigbee. The T1 model adds atmospheric pressure. This guide covers pairing and reporting issues.

Sensor Not Pairing

Symptoms

LED doesn't flash during pairing
Hub can't find sensor
Pairing times out

Solutions

Reset sensor - Hold reset button with pin for 5 seconds until LED flashes.
Fresh battery - Install new CR2032 battery before pairing.
Close to hub - Keep sensor within 10 feet of Aqara hub during pairing.
Hub in pairing mode - Start "Add Accessory" in Aqara Home app first.
Zigbee hub required - These are Zigbee sensors; requires compatible hub.

Readings Not Updating

Symptoms

Temperature stuck on one value
Updates very slowly
Humidity shows 0 or 100

Solutions

Change threshold - Sensor reports on change (typically 0.5°C). Static environment = fewer updates.
Battery level - Low battery reduces reporting frequency. Replace if below 20%.
Force update - Press the button once to force an immediate reading.
Check Zigbee mesh - Weak mesh connection causes missed reports. Add Zigbee routers.

Readings Seem Inaccurate

Symptoms

Temperature off by several degrees
Humidity doesn't match other sensors
Inconsistent readings

Solutions

Placement matters - Avoid direct sunlight, heat sources, drafts, and exterior walls.
Calibration offset - Use Home Assistant or hub settings to apply offset if consistently off.
Sensor equilibration - After battery change or move, allow 30 minutes to stabilize.
T1 pressure - T1 model includes pressure which can help identify sensor drift.

HomeKit/Smart Home Integration

Symptoms

Not appearing in Apple Home
Readings not syncing
Automations not triggering

Solutions

Hub required - Sensor appears in HomeKit through Aqara Hub, not directly.
Expose to HomeKit - In Aqara Home, verify sensor is set to appear in HomeKit.
Automation threshold - HomeKit automations may have temperature thresholds. Verify settings.
Hub connection - Ensure Aqara Hub is connected to HomeKit successfully.