




🔥 Stay cool or cozy with precision — the thermostat that works as hard as you do! 📈
The Emerson 1F85U-42PR Programmable Thermostat features a large 5-inch LCD display for easy reading, versatile 7-day programming options, and user-friendly installation with a built-in level and pluggable terminals. It includes advanced security features like keypad lock and temperature limits, supports dual fuel systems without extra sensors, and operates on 2 included AA batteries, making it a smart, reliable choice for managing your HVAC system efficiently.







| Brand | Emerson |
| Controller Type | Hand Control |
| Special Feature | Lockable, Low Battery Indicator, Low Voltage, Programmable, Temperature Display |
| Color | 3.75 |
| Specific Uses For Product | Air Conditioner, Boiler, Furnace, Heat Pump |
| Temperature Control Type | Programmable |
| Included Components | thermostat |
| Power Source | Ac/dc |
| Voltage | 100240 Volts |
| Shape | Rectangular |
| Display Type | LCD |
| Screen Size | 5 Inches |
| Control Type | Button Control |
| Control Method | Touch |
| Mounting Type | Wall Mount |
| Style | 1F85U-42PR (new model) |
| Backlight | Yes |
| Number of Batteries | 2 AA batteries required. (included) |
| UPC | 786710551871 |
| Global Trade Identification Number | 00786710551871 |
| Manufacturer | Emerson Climate Technologies |
| Part Number | 1F85U-42PR |
| Item Weight | 9.2 ounces |
| Product Dimensions | 6 x 1.13 x 3.75 inches |
| Item model number | 1F85U-42PR |
| Batteries | 2 AA batteries required. (included) |
| Is Discontinued By Manufacturer | No |
| Item Package Quantity | 1 |
| Special Features | Lockable, Low Battery Indicator, Low Voltage, Programmable, Temperature Display |
| Batteries Included? | Yes |
| Batteries Required? | Yes |
| Battery Cell Type | Alkaline |
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