Salus ERT20RF Electronic Thermostat with RF

Salus ERT20RF Electronic Thermostat with RF. This thermostat is part of the Salus range and is a stylish and accurate dial thermostat. This thermostat has been specifically designed to be used for both Volt Free and AC heating applications, can replace most common residential thermostats and is designed to be used with electric, gas or oil heating control systems. Unlike ordinary single unit design thermostats, this is a new type of thermostat separating the operational functions into two units.