Small Motel - need to BUY, set & lock the temperature with BEST thermostat; have SmartThings Hub

I have 2 wire thermostat … that’s OLD

I want to install new, inexpensive thermostats which I can LOCK at a set max temperature (I’d like to let the renter increase the temperature for 2 or 3 hours, and then the temperature reverts to a lower temperature).

You can do this with any thermostat that is supported by smartthings, just add Core or webcore to handle the logic.