'Hey, Siri, is it hot in here?'

Ever ask yourself, "Is it hot in here?" at home? You probably answered yes to that question (don't worry, we've all done it). If you were equipped with one of the best HomeKit temperature sensors, then you can even automate a process with Siri and have it check for you, all without lifting a finger. When you have a HomeKit temperature sensor, you'll be able to get reports on the current temperature of any given room at any time, either through an app or through Siri itself. While there are a few different options on the market for temperature sensors, finding one specifically made for HomeKit can be a little harder. These are the best HomeKit temperature sensors that you can buy right now.

The bees' knees

Ecobee SmartSensor - White 2-pack

Staff Favorite

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.

$79 at Amazon

$79 at Best Buy

Indoors or out

Eve Weather - Connected Weather Station

The Eve Weather is a portable powerhouse as it can tag along with you indoors and out, thanks to its IPX3 water resistance rating. This beautiful sensor has a clean industrial design and an easy-to-read LCD that can show you the current temperature, humidity, and air pressure of your surroundings. The Eve Weather uses a direct Bluetooth connection to HomeKit and even uses the Thread network, so no bridge or gateway is required.

$70 at Amazon

$70 at Apple

Motion +

Philips Hue Smart Motion Sensor (Installation-Free Exclusive for Philips Hue Lights), Hue Hub Required

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 just like any other, allowing it to work with scenes or automations, and can report the status via Siri on demand. Zigbee connectivity to the Philips Hue Hub makes this sensor rock solid when it comes to reliability. Plus, it is lighting fast to respond and update the status of your home.

$40 at Amazon

$40 at Best Buy

$40 at Walmart

Cost effective

Aqara Temperature and Humidity Sensor

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 itself 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.

$19 at Amazon

Double duty

Fibaro FGBHFS-101 Flood, Water & Temperature Sensor

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.

$50 at Amazon

$50 at Walmart

Simple, but effective

MIJIA QingPing Bluetooth Thermo-Hygrometer H Version

$29 at Amazon

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 on the wall. It also uses a single button battery, uses low power consumption, and can record data for up to 30 days.

Eye of Sauron

Fibaro Motion Sensor Z-Wave Plus Temperature Sensor

$45 at Amazon

A totally unique look

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.

Connect it

Philips - Hue Bridge 2nd Generation - White

$60 at Amazon

$60 at Best Buy

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.

Connect all the Aqara

Aqara Hub, Wireless Smart Home Bridge for Alarm System, Home Automation, Remote Monitor and Control

$50 at Amazon

If you want to make use of the Aqara Temperature and Humidity Sensor, then you're going to need the Aqara 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 32 Aqara devices, so go nuts!

Stay comfy with the best HomeKit temperature sensors

HomeKit temperature sensors leverage the power of Apple's smart home ecosystem to do more than just telling you the current temperature in a room. These sensors can work in tandem with other great HomeKit accessories and enable some truly magical automations. For example, you can turn on a smart plug with a fan when the temperature gets a little too hot. When you have the best HomeKit temperature sensors with you, then you won't even have to lift a finger to start up your automations. It makes life so much easier!

If you already have an Ecobee Thermostat, then the Ecobee SmartSensors are definitely the way to go. These compact sensors are completely wireless and report motion to HomeKit, making them available for automations and one of the best HomeKit temperature sensors around.

In the market for a sensor with a built-in display and doesn't require a hub or thermostat? Take a look at the Eve Weather - Connected Weather Station. This beautiful temperature sensor works both indoors and out with a direct Bluetooth connection, and a customizable display shows you the information that matters the most to you.

If you already have some Philips Hue gear in your home, then the Hue Motion Sensor may be the one for you. This sensor works with the Hue Hub and offers the same rock-solid performance and reliability that the system is famous for.

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