Apologies if these are stupid questions, i am a bit of a novice with Zigbee.
I wanted to monitor the temps around the house to see which rooms were colder / hotter and try and balance the radiator outputs better.
I have installed a SONOFF Zigbee Dongle Plus v2 and the required number of SONOFF SNZB-02 sensors.
They appeared to be working OK at the start, but one or two just dropped off the network. I moved them closer the dongle, re-sync’d them and then put them back in place. They worked for a day then failed again.
Tried new batteries, but that didnt help.
Bought replacements for these two affected units and golden again.
Then all the others slowly started to fail.
I have tried to move the dongle away from the HA server with a USB extension cable. Changed the Zigbee channel and resync’d each sensor several times.
Now they seem to connect OK, but the temp and humidity reading just flat lines from the point it connects.
Any suggests please, or are these sensors just not very good?
If the later, what would people suggest please?