Great product needs some update, I'm confident for the future

I use this sensor with a TH16 to power a small heater (2500W). It keeps my shed free of vrost.

It took a while till I got it running. Typical configuration error. The error was between the chair and the keyboard. Now it works with a strong signal for zigbee 3.0 and 1.2 devices!!!!

I relly love this item,design,functions,but I have bad luck.
So after succesfull pairing ,when I attempt to try in Ewelink app,and update,he stuck and dont work.Try to solve problem with support team ,but for now nothing. Must waithing China hollyday for new firmware.

Good contact sensors, especially for the price. Only complaint is the side with the magnet is a bit too large to fit on a window when placed in the middle. I popped it open and just hot glued the magnet in place, but it'd be great if the plastic box was just thinner

Once I figured out what I was doing, had no problems getting it working with both ZHA integration and Zigbee2MQTT through USB passthrough to a Virtualbox instance of Home Assistant. The firmware it shipped with isn't great, so make sure you update. I do wish there was a way to enable firmware updates without removing the case and holding down a tiny button on the board. Shipping was about a month to the US, so be prepared for that. Still excellent value for the price.

I really happy with this device and I must say that is a nice purchase.
I am not worried about what is not perfect, as the problems/suggestions that I see can be easily implemented with some firmware changes.
1- above the bar of the switch (grey/blue) we should have the name of what we are operating (eg. Light Room, Light Outside... etc.).
2- as mentioned by other users, the inside temperature has some offset... it would be nice to have this fixed.
3- really would like to have the full dark screen mode (possibly during some time window). I would like one of these in my room, but don't like the light that the display is sending. So by having a full dim on the display it would be great.

❤❤

I use it with Home Assistant running on a Raspberry Pi 4. The setup was quick, as soon as I plugged it in HA recognized it (although as a Z-wave dongle, so I had to manually add the Sonoff Zigbee dongle integration). Adding my two SONOFF SNZB-02 - ZigBee Temperature and Humidity Sensors was done in a minute and it is working ever since.

Como ya dicen algunos, no cabe bien en las cajas europeas, el termostato mide 2 grados más, espero un firmware que pueda controlarlos, y para mi gusto los iconos de los Widgets apenas cambian cuando están activados, deberían poderse cambiar. Por todo lo demás me gusta y es fácil de configurar.

Pleased with the unit. Until it came to the accuracy of the temperature sensor. It does not read below 21°c. It requires a software update or an external temperature sensor.

Works great.

So many products are over sold and under deliver but these little beauties work very well out of the box. I have mine connected through Zigbee2MQTT as part of a Home Assistant setup and they were easy to join and setup through the HA web interface. I was going to use them to just switch on and off lights but I have found so much more possible with the different "clicks" that are recognised. Thanks for a great little switch SONOFF!

Nice unit. All good except temperature showing 3 deg C high (as others have reported). Urgently needs a temp offset facility in software (please). Thanks.

Awesome use with for the SONOFF Zigbee 3.0 USB Dongle Plus adapter as that really needs a USB extension cable!

Great for the price, but it could of course been longer and had double-shielding for better EMF protection, however then price would have been higher.