Digital room thermostat for 4tr 3way FCU and 2-pos. valve 5DO ~220V BS white SE RTF4L Systeme Electric

Electronic thermostat for fan coil (temperature controller), ventilation/heating/cooling modes, for 4-pipe 3-speed fan coil and 2-position valves, fan speed low/medium/high/auto, backlit LCD screen, push buttons, white housing color, power supply voltage 230 V AC, installation in a BS standard box with depth 35 mm or more