There is no definite answer whether these sensors work as expected or not. Seems that there are two batches still on the market, the first one with some hardware issues, but these are still sold...
Mine is definitely a crap - humidity readings that do not make sense and the battery is depleted in a few weeks - even when paired and used with Tuya Zigbee Gateway!
However, others are saying the this soils sensor works OK for them.
I am currently testing a new model :
... and I still have doubts.
