The Honeywell Home The Round Non-Programmable Heat Only Thermostat CT87K is a corded electric device that operates based on temperature sensor technology. With a sleek white plastic design, this wall-mounted thermostat features a 2-wire wire configuration and is compatible with space heaters. The round shape of the thermostat allows for easy installation and operation, while its non-programmable control style ensures straightforward use. With the trusted brand of Honeywell, this thermostat is a reliable choice for efficiently controlling the heating system in any home.