Improve the efficiency of your home heating system with the ESI Wireless Programmable Room Thermostat ESRTP4RF+. This thermostat is compatible with Honeywell and is made of durable plastic material. It features a rectangular shape and can be mounted on walls, floors, radiators, or surfaces. With a 7-day programmable period and 6 periods per day, this thermostat offers convenient control over your central heating radiator. It has a push-button, digital, and analog/mechanical control style and a wireless wire configuration. The ESI Wireless Programmable Room Thermostat ESRTP4RF+ is designed for use with AA batteries and has a voltage of 230V. It also includes features like room/remote sensor temperature and is programmable.