ESRTP4RFW Series 4 replaced the ESRTP4RF+ about 6 months ago. The ESI ESRTP4RFW Programmable Room Thermostat is a wireless, Alexa compatible device designed for central heating radiators. It features a sleek white rectangular design, wall-mounted for easy installation. This thermostat offers 6 periods per programmable day, 4 heat stages, and frost protection properties. With a 3-year manufacturer warranty, this thermostat provides programmable control and operates on battery power, making it a convenient and efficient choice for maintaining optimal indoor temperatures.
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