The Heatmiser PRT-B Battery Powered Programmable Thermostat is a viable upgrade route for those with a dial thermostat working on a 2-wire system.
Programmable | Yes | Optimum Start | Yes |
Holiday Function | Yes | Keylock Function | Yes |
Temperature Hold | Yes | Frost Protection | Yes |
C/F Option | Yes | Built-in Air Sensor | Yes |
Supply | 2 x AAA Batteries | Dimensions (L,H,D) | 99x86x24mm |