5-2 Day Seperate Weekday / Weekend Programming Large Display with Bright Blue Backlight Dual Powered – Hardwired or Battery Permanent Non-Volatile Memory Filter Check Monitor Adaptive Recovery Mode (ARM) ESD Guard Electronic Circuitry Compatible with Single Stage Gas, Oil, or Electric Systems (Including Single Stage Heat Pumps and Millivolt Heat Only Systems) Electrical Rating: 24 Volt AC (18-30 VAC), 1 amp max. load per terminal, 2 amp total max. load (all terminals) Control Range: 45 – 90 F (7 – 32 C) Accuracy: +/- 1 F (+/- .5 C) AC Power: 18-30 VAC DC Power: 3.0 Volts DC (2 “AA” Alkaline batteries included) Terminations: Rc, Rh, B, O, Y, W, G, C