**Non-programmable digital thermostat. **Large, clear, backlit display - easy to read in various lighting conditions. **Display size options - available in large screen or standard. **Precise comfort control (+/- 1Âº F) - maintains consistent comfort to the highest level of accuracy. **Easy change battery door - flip out door allows for easy battery replacement without removing or disassembling the thermostat. **Up to 3 Heat/2 Cool Heat Pump or Up to 2 Heat/2 Cool Conventional. **Dual-powered (battery and/or hardwire).