Wyze launches room sensors for its Wyze Smart Wi-Fi Thermostat

The highly anticipated Wyze Room Sensor launches today. Originally promised in 2021, this is a small, wireless device that can be paired with the smart home company’s Smart Wi-Fi Thermostat, which launched in December 2020. Designed to optimize comfort in your home and help manage hot and cold spots, the Wyze Room Sensor detects temperature, humidity and movement. The sensor only works when paired with the thermostat using the Wyze app, so it cannot be used as a standalone temperature monitor.

Each sensor costs $24.99 plus shipping, or $69.99 plus shipping for a three-pack. They can be purchased in a bundle with the Wyze Smart Wi-Fi Thermostat ($70.99) for $145.96 (plus shipping).

Room sensors are a popular addition to smart thermostats to give you more control over the temperature in every room in your home. The Ecobee Thermostats, Nest Learning Thermostat, and Honeywell Home T9 Thermostat are some consumer models with the option of wireless remote sensors. While they can help your thermostat cool or heat a room to a certain temperature, they can’t control the temperature in that room alone. If a room sensor in the kitchen indicates that it is too cold, the thermostat sends heat to each room to make the kitchen warmer.

Each Wyze Room Sensor weighs 40 grams and is 5 inches long. They can sit on a magnetic holder or be attached to a wall with double-sided tape.
Image: Wyze

The new Wyze Room Sensors have two main functions: an auto comfort mode that uses the data from the sensors to keep the rooms you are in at the desired temperature, and a hot/cold spot management system that keeps your entire home at a constant temperature. This can be set to prioritize energy savings or maximize comfort, or somewhere in the middle.

Automatic comfort mode uses the device’s motion sensor to determine which rooms you’re using and then averages the temperature readings between them. It then communicates with the thermostat via Bluetooth to tell your heating/cooling system to adjust to that temperature. The Wyze app lets you turn specific sensors on or off based on what mode your thermostat is in — Sleep or Home — so you don’t accidentally cool the ground floor all night because you grabbed a midnight snack.

The sensors also have a temperature shift (from 3 to 10 degrees Fahrenheit), causing a difference between the thermostat’s reading and the sensor’s reading. A lower offset provides a more accurate temperature in the room, while a higher offset gives the system more flexibility and more energy savings.

The Wyze Room Sensor shows the current temperature and humidity on its E ink display.
Image: Wyze

An E ink display on the sensor provides a visual indication of the temperature and humidity in the room and is a feature that no competition offers. Both Ecobee and Honeywell Home’s T9 room sensors measure humidity, temperature and movement, just like Wyze’s. Nest’s can only measure temperature and will only work with the Nest Learning Thermostat, not the newer Nest Thermostat.

Wyze’s sensors are also characteristically cheap – with sensors from competing companies starting at $39.99 compared to $24.99 for Wyze’s. Each Wyze thermostat can support up to six sensors, which is the same as Nest, but less than Honeywell (20) and Ecobee (32). The sensors are powered by two AAA alkaline batteries that Wyze says will last up to three years. They come with a magnetic stand to place on a shelf or table or can be attached to a wall with double-sided mounting tape.

The new room sensors are not required for the Wyze Thermostat to work, they are just an additional way to manage your comfort levels. While we haven’t tested Wyze’s sensors, based on our experience with models from other manufacturers, room sensors are most useful if you have areas in your home that your heating or cooling system struggles to stay cozy or cool enough.

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