SAME DAY SHIPPING ON 99% OF ORDERS 
Simplify your home comfort control with the replacement for Resideo TH1100DV1000 PRO 1000 Thermostat. This digital non-programmable thermostat provides straightforward, reliable temperature control for standard heating and cooling systems in a compact vertical format.
Featuring a clear digital display and simple Up/Down buttons, this unit is easy to operate without complex programming. It is designed for single-stage heating and cooling systems (1H/1C) and is battery-powered, making it a versatile choice for residential upgrades.
Key Features & Benefits
- Digital Simplicity: Easy-to-read backlit display shows current temperature and setpoint clearly.
- Simple Operation: Basic slide switches for Heat/Cool/Off and Fan Auto/On require no learning curve.
- Precise Comfort: Maintains temperature within +/- 1 degree F for consistent comfort.
- Battery Powered: Runs on 2 AA batteries, allowing for installation on systems without a C-wire.
- Vertical Mounting: Compact vertical orientation fits standard wall footprints.
Product Specifications
- Product Type: Replacement Digital Thermostat
- Replaces OEM Part #: TH1100DV1000 (Resideo / Honeywell Home)
- System Application: 1 Heat / 1 Cool (Conventional or Heat Pump w/o Aux)
- Display: Digital Backlit
- Mounting: Vertical
- Power Source: Battery
- Condition: Brand New
Common Applications
This thermostat is suitable for controlling:
- Standard Gas, Oil, or Electric Furnaces
- Central Air Conditioning Systems
- Single-Stage Heat Pumps
- Gas Fireplaces (Millivolt or 24V)
Get simple, reliable control. Order your Replacement PRO 1000 Thermostat today!
During the checkout process, you can choose from expedited services such as overnight delivery to standard ground shipping. We aim to ensure your order is delivered promptly and reliably, wherever you are.
All returns must be made within 30 days of purchase with the invoice. (After 30 days, Interlight credit only, Minimum 25% restocking fee, no returns after 60 days, special items order just for you are not returnable.)
At Interlight, your satisfaction is our priority. We offer a 30-day money-back guarantee on eligible products, provided they are returned in resalable condition with the original invoice.