Focuspro 6000 Wireless Digital Thermostat Offers The Perfect Blend Of Features, Performance, Energy Savings and Value. With Largest Backlit Screen In Its Class, Focuspro 6000 Prominently Displays Both Room and Set Temperature. Selectable To 5-1-1 (Weekdays, Saturday, Sunday) or 5-2 (Weekdays, Weekend). Large, Clear, Backlit Display Is Easy To Read In Various Lighting Conditions. Display Is Available In Large Screen or Standard Size. Precise Comfort Control (+/-1F) Maintains Consistent Comfort To The Highest Level Of Accuracy. Simplified Programming and Operation. Easy Change Flip-Out Door Battery Allows For Easy Battery Replacement without Removing or Disassembling The Thermostat. Built-In Instructions with Simple, Pull-Out Instruction Manual. Adaptive Intelligent Recovery Ensures Programmed Temperature Is Reached By Programmed Time. Temperature Range Stops Prevent User From Setting Temperature Too High or Too Low. Use with Gas, Oil, Electric, Heat Pump, Forced Warm Air, Hot Water, Steam or Gravity. Dimensions: 3-9/16" High" x 5-13/16" Wide" x 1-1/2" Deep (91mm High" x 147mm Wide" x 38mm Deep. Also Available In Kits For Zoned and Non-Zoned Systems. Mounting: Horizontal. Stages: Up To 3 Heat / 2 Cool (Heat Pump) or Up To 2 Heat / 2 Cool (Conventional).