About This Product
| Volume 141 Catalog Page: 124, 128 | 
|---|
| 1H/1C conventional and 2H/1C heat pump | 
| 7 day, 5-1-1 day, 5-2 day or non-programmable | 
| For gas, oil and electric heating/cooling | 
| 40°F to 99°F temperature range | 
| LED backlight for easy viewing | 
| Battery or hardwire power method with manual changeover | 
| 24V | 
| 4-1/16-in square thermostat | 
| TH4210U2002/U | 
| Depth: | 1-3/32-in | 
|---|---|
| Height: | 4-1/16-in | 
| Programmable Thermostat: | Yes | 
| Thermostat Power Source Code: | Dual Battery | 
| Touchscreen: | Yes | 
| Voltage Code: | 20V to 30VAC | 
| Width: | 4-1/16-in | 
| WiFi: | No |