Had one of the LCD single zone Duo Therm thermostats in a Sunnybrook camper and it had a mind of its own. In my current camper, a 2002, it is old school with an analog thermostat and NO digital anything. I recommend using the simplest tech possible as an LCD display and touch pads and remotes are just more gee-gaws to go bad. You have to match the thermostat to your A/C head unit and your unit may not be compatible with an analog unit but the sending unit in your A/C can be swapped out for one that works with an analog thermostat (I think). Here is what I have and NEVER had an issue:
https://www.ebay.com/itm/Duo-Therm-D...361115228ac768