SONOFF ZBMINI Zigbee Two Way Smart Switch

I prefer ZigBee devices and have installed 7 of this Mini. The good quality as usual and perfect delivery (about 15 days to be delivered in Italy). I'll be back soon with new purchases

The ZBMINI is a great product, but I am having issues with reliability. I am using it for a bathroom fan to turn off after the humidity reaches a value, however I have been experiencing issues with the zbmini actually turning off or on reliably. The fan is a panasonic bathroom fan, which is a an inductive load and periodically (not every time) the fan will either not turn on or not turn off. The zbmini turns on, then immediately turns off or turns off, then immediately turns back on. I have tested this zbmini with a resistive load and it does not experience this issue.

My order was timely delivered. The switches are working flawlessly. Recommended.

This thing fits perfectly behind my old style switch. And by perfectly, I mean you have to treat it right, trim the wires as short as you can, screw the wires tight so they don't pull out while you're manoeuvring the device, and and be gentle while pushing it back into the bottom of the switch cavity. This is my third one, I keep getting them because my wife doesn't want me changing any switch to a modern switch, and I keep wanting to expand my smart home network.
Once you've physically got them installed, the wireless connection is a breeze. With Hubitat, it doesn't detect device type automatically, you have to select "Generic Zigbee Switch", but apart from that it's effortless and does what you want.
Compared to the standard physical non-smart switch it's replacing, there is a slight delay from flipping the switch to the light going on or off - it's noticable but not annoying.
I'll be buying more - it's the perfect solution to making old switches smart. Either to add automatic lighting to patios based on movement or door contact sensors, or just to help add an extra light switch to control a light 3-way without needing to re-wire. (Of course, you need a smart Zigbee hub.)
I have had zero problems with this switch. It response straight away when I flick the switch, and also as part of rules responding to opening a door or motion sense on my front door landing. I've never had to reset it or anything.

A little bit too big for my purpose. I have ticino electric box with a combination of switches and an outlet and the ZBMINI does not fit comfortably into that box. Otherwise it works well with my system. I'm running zigbee2mqtt with homeassistant.

shipping took a little long

Funciona como se espera y es ideal para determinados proyectos.

I'm using the ZBMini via ZHA in Home Assistant. The automation has worked flawlessly and I have ordered another ZBMini for an additional automation.

I have 16 Zbmini around the house, and while some works great, some does not. It is not a connectivity issue as it is always available on Home Assistant, but some times I have to switch it off 3 times for it to really go off. I can hear the relay clicking on its own switching back on. This happens on either using the switch or a remote command from home assistant. Not sure if this is a faulty unit that needs to be replaced, or a design flaw as I can see lots of feedback on the very same problem. People suggests to add a resistor to it, but I don't feel I should do such a design change.

The range is very limited. Plus you don't have the footprint to solder an external antenna.
Borderline construction, it feels really cheap.
And the lack of UL certification does not bring confidence.
Would not recommend nor buy again.