sensor

SONOFF SNZB-02D

budget local: excellent Zigbee

Price: $15.90 verified Sep 6, 2026
HA fit: excellent
Works offline: yes
Setup: easy
Hub needed: yes

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SONOFF SNZB-02D temperature and humidity sensor with LCD

Quick verdict

SONOFF's SNZB-02D adds a useful LCD to a low-cost Zigbee temperature and humidity sensor, so you get instant at-a-glance readings plus local automation data. It is a practical pick for climate balancing, dehumidifier triggers, and room comfort monitoring in Home Assistant.

Standout: Integrated LCD with local Zigbee telemetry for both visible and automated climate monitoring.

Notes last checked Mar 22, 2026.

Compatibility snapshot

Home Assistant excellent

Apple Home none

Google Home none

Alexa none

Works offline yes

Setup easy

Extra hub needed yes

Power battery

Local control facts

Home Assistant: zha integration, Local Polling (home-assistant.io, checked Sep 10, 2026)
Zigbee2MQTT: supported device, listed as SONOFF SNZB-02D (Temperature and humidity sensor with screen) (zigbee2mqtt.io, checked Sep 10, 2026)

Why it stands out

built-in LCD display shows temperature and humidity at a glance
excellent zigbee2mqtt and ZHA support — fully local
very affordable for the feature set

Reasons to hesitate

requires a Zigbee coordinator — no standalone use
no native voice assistant support without Home Assistant bridging

Best for

Home Assistant users wanting cheap, reliable temp/humidity monitoring
Zigbee mesh networks needing environmental sensors with displays

Avoid if

you do not have a Zigbee coordinator
you want direct Alexa or Google Home pairing without a hub

Privacy and local-control notes

The sensor works fully locally through Zigbee coordinators such as ZHA or Zigbee2MQTT. Temperature and humidity history can remain on your own Home Assistant instance.

Home Assistant support: supported · integration path: zigbee2mqtt / ZHA.

Buying reality check

Price notes: About $16 on Amazon (verified 2026-08-28) - currently the cheapest of the ranked Zigbee climate sensors on this site, despite having the biggest display.

Verified price reads: lowest seen $15.9, latest $15.9 on Sep 6, 2026.

Sep 6, 2026$15.9amazon
Aug 28, 2026$15.9amazon

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 Mar 22, 2026.

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