RTH221B1039/E1 Honeywell Home 1-Week Programmable Digital Thermostat
Digital 2 heat/1 cool. 1 week programming with 4 periods per day. For use with central gas, oil, or electric furnaces and A/C. For millivolt systems. For heat pumps without aux heat. Precise temperature control (+/-1 degree). Easy-to-install. No. RTH221B1039/E1: Programmable: 7-Day Programmable, Color: Off White, Width: 4.75 In., Height: 4 In., Depth: 1 In., Batteries Required: 2AAA (Not Included), Voltage: 24, Pkg Qty: 1, Package Type: Clamshell
