For 4 heat / 2 cool multistage systems, Robertshaw Pro Series RS10420T WiFi touchscreen thermostat gives app control over a 7-day program. It needs a C-wire and includes battery backup.
Wiring lands on large terminal blocks with universal sub-base. Wake, leave, return and sleep icons plus quick-access menu keep daily use simple.
RS10420T Features
Smartphone + Alexa control
Adjusts through Robertshaw iOS / Android app or Alexa.
