SONOFF SNZB-02D Zigbee LCD Smart Temperature Humidity Sensor

I ordered two mentioned sensors in December 28, 2022. Two attempts to send the parcel to Ukraine were failed due to the presence of a lithium battery inside of this sensor. So we had to split the parcels - thanks to Taylor from the Sonoff support team for the very good help and support!
After three months of waiting (the second (main) parcel with other Sonoff products, by the way, is still on its way to me) I finally got a chance to evaluate this new sensor at March 20, 2023.

The initial connection of the sensors went smoothly. Temperature and humidity readings are good accuracy. No questions about the assembly, design or plastic quality.

Now about the little downsides:
- the viewing angles of the LCD screen are quite small
- the magnet in the sensor body can't hold the weight of the device. I can't hang it on the fridge door, - it just slips down under its own weight. So U need to stick the creddle on top of the fridge and it will stay there forever due to the good 3M glue properties. 😉
- complete lack of support in web.ewelink.cc and cast.ewelink.cc. Hopefully, they will fix this asap.
- concerning power consumption, I think there will be no miracle due to a voraciousness of the LCD screen and its constantly on status.

Anyway, the SNZB-02D is good and usefull! Thank U Sonoff! Keep going!
Will wait for the Sonoff Water leakage Zigbee sensor 😉

sono molto deluso come vedete in foto non riesco a vedere temperatura e umidità in home assistant se avete una soluzione correggerò la rencensione ma per adesso non me ne faccio nulla se è così , attendo vostri consigli ho anche un ticket aperto .

Perfekt integration into my Home Assistant installation.
Records and displays temperature in my home.

1. battery level jumped from 100% -> 80%. Here I'd like more steps or voltage
2. prefer messages with temperature change of 0.1°C/F or every 30min instead 0.2 / 60 min.
3. OTA feature would be nice, also for Thread/6LoWPAN/Matter upgrades
4. the power level still needs full integration in Zigbee2MQTT (shown as "?" with me)
5. can't tell anything about overall battery consumption yet

Otherwise seems to integrate easier with HA than previous model without Display (SNZB-02) because of lower precision and fewer messages all together.

It’s a good product if it has light with a push button it will be exelent

I bought this zigbee thermometer to integrate it into Home assistant. It works well, is accurate and the display is large enough to have a visual reading.

A precision: The data that it exports is always 24 lines of record per day. This means that the frequency of temperature and humidity readings is equivalent to about 30 minutes. If we compare the graphic representations of the temperature and humidity of the SNZB-02D with those of the previous model SNZB-02, in the SNZB-02D there are flatter segments than in the previous one, as if in this last model the frequency of the readings would have decreased significantly.

Great product overall
Good points
Small with clear display.
Easy to set up.
Accurate temp/hum readings.
Built in table stand.
Battery level indicator.

Bad points
Limited range - Has to connect to a hub on the same floor nearby otherwise no data.
Intermittent reporting - only appears to send data back once per hour to my NSPanel Pro. Even when close to hub. If the connection is down the data for that hour is not captured leaving big gaps in the graphs. More regular reporting is needed with better hub connection every 30 mins would be better.
Battery - Am not a fan of the cr2450 battery. AA cells would last longer and are lower cost and more easily available.

Overall
Very good effort and well worth buying. Minor improvements needed.

I had to remove the battery and start pairing process several times, because after pairing the values were not available.
I use Home Assistant and Zigbee2MQTT
Don't recommend.

It would be perfect if it was possibile to display the temperature of other sonoff sensors..