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DESCRIPTION HD203 Touch Screen Thermostats are used to control room temperature in commercial,industrial and residential environment via controllingfan coil units and motorized valve,motorized fan and valve ofheating only,cooling only and heating/cooling central air-condition and system thereof,and uses NTC to detect the roomtemperature and compares it with the set-point so as toautomatically keep the room temperature stable.CHARACTERISTICS Sensor: NTC Power supply: 220V/AC 50/60HZ Rated Current: 3A Set-point Range:535 Accuracy: ±1 Measured Temperature: 140 Power consumption:≤1.5W Shell: White PC plastic Ambient Condition:-555 Relative Humidity: <92%(no condensing) Size: 120mm x 90mm x 45mm (Length* Width * Thickness)FUNCTION Basic func: Setting Turn on/off within 24 hours; Adjustable manual 3-speed or automatic fan speed control,High,Medium and Low; May connect to main system; Manual operation available; Data Memory:If the power cut off accidentally,it could be continuing to work by order if the power returns. Available for: Fan coil unit Two-line Motorized Valve Three-line Motorized Valve Solenoid Valve Heating Equipment Three-speed angle fan valve