Best HomeKit temperature sensors 2021

Ecobee's SmartSensors are companions for the Ecobee thermostat that helps to regulate the temperature in rooms across your home. The SmartSensors are completely wireless, running on a single coin battery, and their compact size allows them to be placed just about anywhere. These sensors also include motion sensing, which allows them to work with every device in your HomeKit home, enabling automations such as turning on your lights when motion occurs.

This monitor not only detects the room temperature, but you can get information about the air quality, humidity, and VOC levels too. The e-ink display makes it super easy to see all of the data quickly and easily. Plus, since it's HomeKit enabled, you can use this as a way to have your scenes automatically turn on once it reaches a certain temperature and more.

The Philips Hue Motion Sensor is our go-to accessory for turning on and off our lights automatically as we come and go. It also just happens to have a temperature sensor. Once your motion sensor is set up with HomeKit, the temperature sensor functions like any other, allowing it to work with scenes or automations. It can also report the status via Siri on demand. Zigbee connectivity to the Philips Hue Bridge makes this sensor rock solid when it comes to reliability. Plus, it is lighting fast to respond and update the status of your home.

Aqara's Smart Home Temperature Sensor is an affordable option that has some surprising perks. This tiny sensor reports the temperature to the Home app, plus humidity and atmospheric pressure, all in a package you can put just about anywhere. Even though the sensor has a low price, you will need to have the Aqara Smart Home Hub to add it to HomeKit, which may pay for itself if you need lots of sensors around the house.

If you are in the market for a temperature sensor for one of your kitchen, bathroom, or any other place that has the potential for water damage, then Fibaro's Flood Sensor may be your best bet. Simply place this completely wireless sensor anywhere in your home, and you will have access to temperature monitoring, as well as an alarm that can notify you the instant that water is detected. This sensor can last up to 2 years before needing a battery swap, and it also reports humidity.

This simple little sensor will read and display the current temperature of the room on the display. You can see the data clearly with the 180-degree viewing angle, and you get two options of mounting it: either on a desktop or the wall. It also uses a single button battery, uses low power consumption, and can record data for up to 30 days.

The Fibaro Motion Sensor Z-Wave Plus Temperature Sensor looks like it came straight out of Mount Doom with the unique "Eye of Sauron" look. This sensor gives you quick motion alerts, real-time temperature readings, and even vibration notifications, all of which trigger your HomeKit accessories through automations, and all data is encrypted. You will need a hub, but this sensor is compatible with any open z-wave system like smart things, Vera, Nexia, and more.

If you want to use the Philps Hue Smart Motion Sensor that we just mentioned, you're going to need the Philips Hue Bridge to make it all work together. The Bridge acts as your central hub for all things automated, including compatible HomeKit products.

If you want to make use of the Aqara Temperature and Humidity Sensor, then you're going to need the Aqara M1S Smart Hub on top of it. With this hub, you can connect various Aqara smart home products that are compatible with HomeKit. In fact, this hub allows you to connect up to 128 Aqara devices (Aqara Zigbee repeaters required), so go nuts!