The SONOFF Zigbee Indoor Temperature Humidity Sensor (SNZB-02D) is an excellent, versatile device with reliable performance. Despite being marketed as an indoor sensor, I installed it outdoors, and it has held up well. It integrates seamlessly with Hubitat, making it an ideal choice for smart home enthusiasts.In my setup, I use it to monitor outdoor temperatures to automate switching between my heat pump and oil heating system. The sensor provides accurate and consistent readings, enabling efficient control of my heating system based on temperature thresholds. Overall, this sensor is a great value, offering flexibility and reliability for various use cases.

This is easy to connect to network and easy to read, seems to be accurate

The most important thing to me was how easy it is to hook up to SmartThings. I got this because someone on forums had recommended it because it is a Zigbee protocol device. Most time Zigbee devices can just be scanned for within SmartThings and you don't need to download any other special app. That was the case here although it was a bit of a puzzle on how to initiate pairing. It didn't actually say how in the little user booklet that has absolutely tiny writing in it in many languages. I had to find the manual online. It's such a simple thing why don't they just put that in large letters right in the front of the manual. All you really need to know on this thing is that you pull off the film so that the battery inside engages, then press the tiny little button on the back for about 5 seconds until the little broadcast icon starts flashing on the display. Then initiate a scan in SmartThings and it should pair pretty quickly and start showing the temperature and humidity within SmartThings.The other use of the button which is also not in the manual is that if you click it once it will change from C to F. Again basic basic stuff and it's not in the stupid little booklet they send, which really only tells you to go download their app which you don't really need. So that's why I'm deducting one star.I like the fact that this has a clear LCD display that's always on. A lot of these little units are just blank white plastic boxes.Accuracy is okay. It reads maybe 1° higher than my trusty mercury thermometer. I think it's more accurate than the little black thermometer unit shown in the photo.In SmartThings it responds perfectly and you can use it as a condition for actions. You can also see a nice graph of the temperature over hours and days. Nice.So what I really wanted to do with this was put it in my living room and have it turn on the air conditioning which is on a smart plug, during a certain portion of the afternoon, only if the temperature gets above for example 77F. My AC unit is perfectly safe to use turning it on and off with the main supply power. So: create a new SmartThings routine, as an IF precondition, set this sensor as equal to or greater than 77F. Then set the second IF main condition as a time range say 1pm to 6pm. THEN: turn on AC smart switch. If it never reaches 77F the AC won't come on. If it doesn't reach 77 until 3:30pm, it will only come on at that point. It works well, very very simple but effective.One could also set it to turn off in an evening time range as well if it reaches a certain temperature. But I have not needed to do that yet here in summer, since I always turn it off at sundown regardless and open the windows. This AC has a heat pump so I plan to use it in the winter too with a low limit temperature using the sensor.So this is maybe not as fancy as using something like a nest thermostat, but on the other hand it's very versatile, simple, cheap, and I can just use Smartthings alone, but also still turn it on and off with a Google home command.

This device will not stay connected to my Zigbee network (Using Home Assistant ZHA). It disconnects randomly after a few hours or a few weeks.I cannot use this for reliable automations or measurements

Installs and pairs in a jiffy. It tracks with my La Crosse Technology thermometer for comparison. Totally happy with it.

A small convenient temperature/humidity sensor with a display and zigbee support. I’m using this in an enclosed box monitoring storage humidity. It was added to Home Assistant without issue.As a battery powered device, this sends occasional updates and does not support polling.Not an issue for me. A couple updates a day would work fine in my application. However this would not make a good remote sensor for a thermostat. The updates aren’t that consistent. But it doesn’t make that claim either.Overall I like it.

Great solution for what I needed. Works with HomeKit, but you have to know where to look for the data.

The unit works well. It was easy to get paired with my Hubitat. The sensor looks really nice and designed well.

Once I temporarily disabled 5GHz on by WiFi I was able to connect this device to my SmartThings hub as it only works on the 2.4GHz band. No problems with it staying connected after that and my WiFi was back to it's normal dual band.

Descripción del producto para su venta dice: 2 paquetes y solo viene 1. Pero si es buen producto

Used for barely a month and with HA.I use only the temp function and HA then controls the floor heating.Temperature was calibrated correct. Humidity senor I did not have any means to test. I have seen reports that it is not celibrated correct from factory.It could have had screw holes for wall installation but it came with a 3M tape pad for that purpose. The wall holder is also megnetic so it can sit on the fridge door etc.

capteur qui fonctionne parfaitement et surtout pas cher !

I am using this at the hot end of my bearded dragon's vivarium and it is proving very handy for keeping an eye on the temperature and humidity. I have also set up an alert in case the heat bulb fails when I am out. I am getting another for the cool end so that I can monitor the temperature gradient. Very easy to set up with the Sonoff hub via the eWelink app.