Wireless programmable thermostat powered by RedLink * No need to run additional wiring * Horizontal mounting design * 5-1-1 Programming - Programming for the weekdays, Saturday and Sunday * 5-2 Programming - Programming for weekdays and weekends * Can display outdoor temperature and humidity * Dual Fuel enabled - requires THM5320R1000 Equipment Interface Module and C7089R1013 Wireless Outdoor Sensor (sold separately) * Requires (TrueZONE system - not included): HZ432 or HZ322 TrueZONE panel; THM4000R1000 Wireless Adapter * Requires (Non-zoned system - not included): THM5320R1000 Equipment Interface Module * 1 year battery life and 2 month low battery warning