Round® Non-Programmable Thermostat (CT87)

DIY Install
With its time-tested comfort control, you will feel relaxed in your own home for years to come. Discover why this is the world’s most popular thermostat.
Verify compatibility with your home heating and cooling system, remove your existing thermostat and follow step-by-step instructions for installation.
The Honeywell Classic

When you’re in your home, you want to feel at home. The best way to feel at home is to be comfortable. The Honeywell Classic makes you feel at home with its precision temperature control, and it has proven this for generations. It’s because of this that the CT87 Round® is the world’s most popular thermostat.

  • The Honeywell Classic
  • Simple user interface
  • One-year warranty
  • DIY installation
Precise Temperature Controls
Find you comfort zone at home with the Round’s +/-1 degree Fahrenheit accuracy
Easy to Use
With the familiar design you know, it’s never been easier to set temperature and thermometer scales on the twist-to-set thermostat face
  • Model number: CT87
  • Color: White
  • Dimensions: 3 11/16 in. diameter x 1 3/4 in. deep


The Round Thermostat
The Round Thermostat
The Round Thermostat
The Round Thermostat
Setup is simple and easy
Follow the quick installation guide that comes with the CT87 Round®. If you misplaced this guide, you can find it in the resources section below. Installation is fast and easy. Remove your old thermostat but be sure to label the wires. Install and wire your new thermostat. Set your new thermostat to match your heating/cooling system. If you need assistance, call us at 800-468-1502.