Nest Temperature Sensor vs Sonoff SNZB-02DR2 AirGuard TH

The Sonoff SNZB-02DR2 AirGuard TH for most buyers. It works on its own, measures temperature and humidity, has a 3.6 inch screen, alerts, history and a 2 year warranty. The Nest Temperature Sensor is the right choice only when you already own a Nest thermostat and want to steer it to a specific room without wiring.

The Nest Temperature Sensor is a closed accessory for a Nest thermostat, reading temperature only. The Sonoff SNZB-02DR2 AirGuard TH is a standalone Zigbee and Bluetooth sensor that reads temperature and humidity, shows them on a 3.6 inch LCD and works with any Zigbee hub.

No. The Nest Temperature Sensor only functions as a companion paired to a compatible Nest thermostat and has no independent Wi-Fi, Bluetooth, Zigbee, Z-Wave or Matter connectivity of its own.

Not to get a reading; Proximity Mode pairs it to a phone over Bluetooth in the eWeLink app. A Zigbee gateway adds remote access, scenes, push alerts and the remote sensor display, and can be a Sonoff bridge, an iHost or a Zigbee2MQTT or ZHA dongle.

Through a Sonoff bridge. The Sonoff SNZB-02DR2 AirGuard TH is a Zigbee device that Sonoff republishes into Apple Home and Matter through its own bridges such as the ZBBridge-U or eWeLink CUBE.

Buy the Nest Temperature Sensor if you own a supported Nest thermostat and simply want it to heat the room you are in. Buy the Sonoff SNZB-02DR2 AirGuard TH for a general-purpose temperature and humidity sensor with a screen, alerts and history that works with any Zigbee hub.