The electronic room thermostats FH-WT/-WP/-WS are used for single room temperature control, mainly in hydronic floor heating systems. All thermostats are provided with easy max. and min. limitation of the setting range, as well as thermal feedback to improve accuracy. LEDs behind the front cover indicates heat demand. FH-WT is a standard room thermostat. FH-WS is a thermostat with manual night setback and optional connection for a floor sensor. If a floor sensor is connected minimum or maximum regulation is selected with a switch, depending on the type of floor i.e. wooden floor (max) or tiles (min). FH-WP is a tamper proof model of the FH-WS for use in public environments i.e. schools