sensor

Aqara Climate Sensor W100

Aqara

budget local: excellentFully controllable on your LAN with no internet dependency. MatterThreadZigbee
Price
$39.99 verified Sep 8, 2026
HA fit
good
Works offline
yes
Setup
easy
Hub needed
yes

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Aqara Climate Sensor W100 - Temperature and humidity sensor with a 3.4-inch LCD and three programmable buttons

Quick verdict

A simple, cheap temp and humidity sensor that runs on Thread. No hub, no cloud, no fuss. Add it to Home Assistant via Matter and you get local climate data for automations. It does one thing well and does it without phoning home. Buy a handful and put one in every room.

Standout: Temperature and humidity sensor with a 3.4-inch LCD and three programmable buttons, running Matter over Thread or Zigbee 3.0 on any ZHA / Zigbee2MQTT coordinator - no Aqara hub, fully local.

Notes last checked May 31, 2026.

Compatibility snapshot

Home Assistant goodReliable local integration with minor caveats (a hub, manual config, or polling). Core function works locally.
Apple Home goodWell supported, with only minor gaps.
Google Home goodWell supported, with only minor gaps.
Alexa goodWell supported, with only minor gaps.
Works offline yes
Setup easy
Extra hub needed yes
Power battery

Local control facts

  • Home Assistant: matter integration, Local Push (home-assistant.io, checked Sep 10, 2026)
  • Zigbee2MQTT: supported device, listed as Aqara TH-S04D (Climate Sensor W100) (zigbee2mqtt.io, checked Sep 10, 2026)

Why it stands out

  • built-in 3.4-inch LCD plus three programmable buttons for at-a-glance readings and local control
  • fully local via Matter with zero cloud dependency
  • budget-friendly for scattering multiple sensors around your home

Reasons to hesitate

  • basic temp and humidity only, no air pressure or air quality
  • in Thread mode it requires a Thread border router on your network
  • runs Zigbee 3.0 or Thread but never both at once, and it ships in Thread firmware - moving it to ZHA or Zigbee2MQTT takes a one-time protocol switch in the Aqara Home app

Best for

  • Home Assistant users who want cheap, local climate sensors for every room
  • Thread-based setups that need temperature data for HVAC automations

Avoid if

  • you want air quality or pressure readings. Look at more full-featured sensors
  • you have neither a Thread border router nor a Zigbee coordinator and do not want to set either up

Privacy and local-control notes

Fully local on either radio: Matter over Thread, or Zigbee 3.0 paired straight to ZHA / Zigbee2MQTT with no Aqara hub. No cloud account needed for ongoing use. Reports temperature and humidity only, so no privacy concerns.

Home Assistant support: supported · integration path: matter.

Buying reality check

Price notes: One of the cheapest Thread-native climate sensors available. Great for buying multiples.

Verified price reads: lowest seen $37.99, latest $39.99 on Sep 8, 2026.

  • Sep 8, 2026$39.99amazon
  • Sep 2, 2026$37.99amazon
  • Aug 28, 2026$39.99amazon

Compare side by side: see sensor comparisons →

Verified against

The compatibility notes above have not been through the source audit yet. The manufacturer's page is here; the notes were last checked May 31, 2026.

Spotted something wrong? Report an error on this page and I will check it against the source and fix it.

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