ThirdReality Temperature Sensor Lite

Quick verdict

If you just need temperature and humidity data feeding into Home Assistant and don't care about an on-device display, this is about as cheap as it gets. Same Zigbee reliability as the LCD version, just smaller and cheaper. Buy a handful and blanket the house.

Standout: The cheapest way to get Zigbee temperature and humidity data into Home Assistant.

Last checked: 2026-03-22

Compatibility snapshot

Why it stands out

• rock-bottom price for a Zigbee temp and humidity sensor
• tiny and unobtrusive, easy to place anywhere
• reliable readings for basic climate monitoring
• fully local Zigbee operation

Reasons to hesitate

• no LCD display, so you can only see readings in Home Assistant
• requires a Zigbee coordinator
• fewer features than the full-size version

Best for

• deploying cheap temperature sensors in every room for whole-home climate tracking
• automations that just need a temperature reading without a display

Avoid if

• you want to glance at the sensor and see the current reading
• you have no Zigbee coordinator

Privacy and local-control notes

Pure Zigbee sensor with no cloud dependency. Fully local operation through ZHA or Zigbee2MQTT.

Home Assistant support: supported · integration path: ZHA / Zigbee2MQTT.

Buying reality check

Price notes: Even cheaper than the LCD version. Pure data sensor with no display to drive up the cost.

Compare side by side: see sensor comparisons →