![]() In Home Assistant it shows up with temp and humidity sensors as well as a battery level entity. To put it into pairing mode, just pull the battery isolator tab and then hold the pairing button for a couple of seconds. This hasn’t been a big deal for me since I have most of these mounted with adhesive, but it’s something to be aware of. This means that if you have it standing upright, the holes are covered. The one thing I don’t like about this sensor is that it has holes for ambient air on the bottom of the sensor. The cover will stay mounted to the surface. While it is mounted, you just need to twist the sensor counter-clockwise and it should open. Unfortunately, this makes accessing the battery a little more difficult since the cover is on the back. ![]() It comes with an adhesive ring that can be used to mount the sensor to a surface. It has a clean modern look – a white body with gray accents, and has a thermometer symbol on the front that is very similar to the Sonoff. ![]() It looks very similar in shape and size to the vibration sensor and smart button that they make. This one is the smallest of all of the sensors by volume. Next we have the Aqara Temperature & Humidity Sensor. It has a refresh rate of 15 minutes and a threshold of 1 degree, meaning temperatures are recorded every 15 minutes, or every 1 degree change in temperature, whichever is sooner. From my testing it seems to have decent reaction time to large temperature swings, like when I put it in my refrigerator. ![]() If you remove the battery isolator you can close it back up and then hold the pairing button down for a few seconds to put it into pairing mode. It comes with adhesive backing as the only mounting option.It’s a little tough to open, even with a screwdriver, but when you do you’ll see the battery. It has a little button on the bottom for pairing, and on the top it has a few vent holes that allow the ambient air to reach the sensor. In fact, this sensor looks almost identical to the Sonoff smart button that we looked at previously – you actually couldn’t tell the difference from a distance unless you saw the thermometer icon on the front. You’d recognize the look anywhere – the same square, sharp look with the chamfered corners that we’ve seen with all of Sonoff’s devices. I asked on social media which devices you guys used, and this one was a popular one. The first one is the Sonoff Temperature and Humidity sensor. Overviewįirst, let’s look at some Zigbee devices. Note that the “no hub†requirement assumes that you have Home Assistant set up and accessible via WiFi, and that you also have Zigbee, Z-Wave, and Bluetooth radios working with your Home Assistant instance.įor each sensor, I subjected them to large temperature swings by placing them in my refrigerator and freezer. I’ll be adding these devices to Home Assistant using ZHA, Z-Wave JS, and the Passive Bluetooth LE Monitor custom integration. The requirements for my sensor selection are that they have to work with Home Assistant, they can’t require any other hub than a Zigbee, Z-Wave, or Bluetooth radio, and they have to cost less than $50. At the end I’ll tell you which ones I would and would not recommend! I bought a bunch of temperature and humidity sensors from a few different brands and I’ll compare their prices and features, and I’ll also give you some ideas for how they can be used in your smart home. Previously I’ve looked at smart buttons, contact sensors, motion sensors, and smart plugs, and in this review I’m doing the same thing, but with temperature and humidity sensors. ![]() What’s up Smart Homers! In this article I’m going to compare 10 different temperature and humidity sensors that work with Home Assistant. ![]()
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