Applications:2-pipe fan coil units, 4-pipe fan coil units,Unit air-conditioner Supply Voltage:12 Vdc or 220 Vac (±10%) Power Consumption:4VA Setpoint Range:5°C to 35°C Setting Unit:1°C/step Accuracy:±1°C Temperature Sensor:NTC Thermistor 10K Control Output:2 SPST relay for 2-pipe and 4-pipe model Electrical Rating:2A run, 250 Vac Interlock Control Output:SPST normally open (N.O.) dry contact output Operating Rating:0∼40°C, 5 ∼ 95 %RH (non-condensing) Dimensions:125 ×150 × 36 mm (W × H × D) Accessories:HW5100 Wireless Remote Unit