Aeotec Multipurpose Sensor vs Sonoff SNZB-02P Temperature & Humidity Sensor

As a temperature and humidity sensor, the Sonoff SNZB-02P Temperature & Humidity Sensor wins. It measures humidity, sends humidity and low-battery alerts, lasts around 4 years per battery, and costs less. The Aeotec Multipurpose Sensor carries a higher owner rating and adds open/close and vibration detection, but it does not measure humidity.

The Sonoff SNZB-02P is a dedicated temperature and humidity sensor with a 4-year battery, while the Aeotec Multipurpose Sensor is a Zigbee contact and vibration sensor that also reads temperature but has no humidity sensor and a shorter battery life.

Yes. Both are Zigbee-only and require a coordinator or bridge. Each works with Google Home, Alexa and Home Assistant, though the Aeotec Multipurpose Sensor also adds SmartThings while the Sonoff SNZB-02P adds IFTTT; neither supports Apple HomeKit.

The Sonoff SNZB-02P is rated for about 4 years per CR2477 cell, well beyond the Aeotec Multipurpose Sensor's roughly 1 year, so the Sonoff needs far fewer battery changes.

Buyers running Home Assistant, Zigbee2MQTT or an Alexa Zigbee hub who want cheap, long-lasting temperature and humidity monitoring across several rooms, with humidity and low-battery alerts. It is ideal for blanketing a home in sensors.

SmartThings and Home Assistant users who mainly want door/window and vibration detection with a temperature bonus, and who value a well-rated multi-purpose device over dedicated humidity sensing.