Profile: Shenzhen deep blue Electronics Co., Ltd. specializes in the research, development and manufacture of HVAC/R microprocessor controller. Our products include package unit, humidifier, dehumidifier, constant temperature & humidity, air handling unit, chiller/heat pump, screw type and heat pump water heater controllers. Our SL3000-AH screw constant temperature dehumidifier controllers are suitable for comfortable constant temperature dehumidifier control. It is widely used in tropical and sub-tropical zone. It features stable communication, self-diagnosis and parameter password protection. Our SL1600-TH1 high precision lab A/C controllers are suitable for high precision constant temperature and humidity A/C control. It features built-in phase sequence/phase loss protection, built-in humidifier/cooling fan proportion control, trial run & off memory function, built-in compressor current detection, high/low temperature protection, probe lost protection, and control logic implemented on the control board. This is also featured with tension and torsion resistance probe for longer working life. This is available in a wide voltage range and avoids misoperation caused by voltage fluctuation.