I have a SmartThings hub and Alexa and I’m looking for a cheap, reliable way to measure temperature across the house. What I’ve tried:
Xiaomi Aqara temperature sensors, which are super cheap but are reliable if and only if they’re close to the hub - they quickly lose connection and won’t reconnect if they’re distant (repeaters make it worse).
Centralite temperature/humidity sensor seems to work reasonably well, but needs CR2 batteries and goes through them quite quickly. Looks like they’ve stopped making them anyway kamukta
Samsung Multisensor, but it seems wasteful to have 6 measurements and only look at one of them
Boesch motion sensor, ditto
VIsonic door sensor, ditto, also only reports temperature a couple times a day
Are there temperature (or temperature/humidity) sensors for Zigbee or Z-wave that cost $15 or less that I can actually expect to work for more than a week at a time?