SONOFF SNZB-02P Zigbee Temperature and Humidity Sensor

Its Swiss-made hygrometric sensor ensures an accuracy of ±0.2°C for temperature and ±2% RH for humidity, with data refreshing every 5 seconds for near-instant monitoring. Weighing 26.7 grams and measuring 45 × 45 × 17.7 mm, the reliability and compactness of the SONOFF SNZB-02P Zigbee temperature and humidity sensor make it a suitable solution for a child's room, a greenhouse, or any climate-sensitive storage area. A compatible Zigbee 3.0 hub is required.

Six months of free cloud history, comfort alerts, and CSV export

The eWeLink app stores up to six months of temperature and humidity data without a paid subscription, with graphs viewable by day, week, month, or half-year. The SNZB-02P sends an instant push notification as soon as predefined comfort thresholds are exceeded, allowing you to act before excessive humidity encourages mold growth or an unsuitable temperature affects an infant, plants, or sensitive instruments. The entire history can be exported as a CSV file for in-depth analysis on a spreadsheet.

Four years of battery life and extended compatibility for the SONOFF SNZB-02P Zigbee temperature and humidity sensor

A single included CR2477 battery provides up to four years of battery life according to SONOFF lab data, without frequent replacement or wiring. Compatible with SONOFF iHost, NSPanel Pro, ZB Bridge Pro, ZBDongle-E, Amazon Echo 4th generation, and SmartThings Hub V3, the SONOFF SNZB-02P Zigbee temperature and humidity sensor integrates with Alexa, Google Home, SmartThings, Alice, and IFTTT for automated triggers based on measured climatic conditions.

Customizable trigger conditions and adjustable reporting frequency

From the eWeLink app, the reporting frequency can be configured according to the desired threshold or interval to optimize the balance between responsiveness and battery life. Automations are triggered when the temperature or humidity goes above or below a defined threshold, allowing automatic control of a dehumidifier, an auxiliary heater, or any compatible smart plug based on room conditions. The SNZB-02P does not support the role of an execution device in smart scenes, only that of a trigger.

FAQ

Does the SNZB-02P have a screen to display readings directly?

No, the SNZB-02P is not equipped with a screen. Temperature and humidity readings can only be viewed from the eWeLink app or compatible third-party platforms. For local display, the SNZB-02LD model with a 2.2-inch LCD screen is recommended.

Is the six-month history accessible without a paid subscription?

Yes, six months of cloud storage is included for free in the eWeLink app without any additional subscription. CSV export is also available free of charge from the app interface.

Can the SNZB-02P be used in an unheated space like a garage or basement?

Yes, the SNZB-02P operates from -10°C to +60°C, which covers temperatures found in a garage, basement, or unheated storage space in Europe. Below -10°C, battery and sensor performance is not guaranteed by the manufacturer.

Is the SONOFF SNZB-02P compatible with Home Assistant?

Yes. The SONOFF SNZB-02P can be integrated into Home Assistant via ZHA or Zigbee2MQTT when paired with a compatible Zigbee coordinator, such as the SONOFF ZBDongle-P or ZBDongle-E. Temperature and humidity measurements can then be used in dashboards, alerts, and local automations.

Specifications