• DIGITAL DISPLAY :The digital display provides accurate temperature readings, making it easy to monitor and Switch the modes between cool and heat Control temperature setting the temperature setting value and the difference value Temperature calibration Refrigerating control output delay protection Alarm when temperature exceeds, temperature limit or when sensor error. VERSATILE USAGE :This thermometer hygrometer is perfect for household use, making it ideal for use in your home or office. Features: • High quality Mini and light weight design large and clear LCD display. • Auto converts cooling and heating modes to keep your equipment in an ideal temperature range. .Have 2 relays .Switch between cooling and heating modes. Support celsius display. • Wide temperature range (-50-99 °C) dual heating and cooling function. • Refrigerating control output delay protection With compressor delay protection function for refrigerating control. • Control temperature by setting the temperature set value and the different value. Technical Parameters: 1.Temperature measuring range: -50 ° C - 99 ° C 2.Resolution: 0.1 ° C 3.Accuracy:and- 1° C (-50 ° C - 70 ° C) 4.Sensor error delay: 1 minute 5.Power supply: 110-220VAC 50 or 60Hz, 12Vdc , 24Vdc ( Choose power supply when you place order ) 6.Power consumption: <3W 7.Sensor: NTC sensor (1PC) 8.Relay contact capacity: Two Relay Cool 10A or 220VAC Heat 10A or 220VAC 9.Ambient temperature: 0 ° C - 60 ° C 10.Storage temperature: -30 ° C - 75 ° C 11.Relative humidity: 20 percent - 85 percent (No condensate) 12.Sensor length: 1.0m 13. Front Panel Size: 75x34.5mm Product Size: 75x34.5x85 mm Mounting Size: 71x29mm Menu Instruction: Code Function Set Range Default F1 Temperature set value -50.0-99.9°C 10.0°C F2 Difference set value 0.3-10.0°C 0.5°C F3 Compressor delay time 1-10 minutes 3 minutes F4 Temperature calibration value -10.0°C-10.0°C 0°C 100 percent brand new and high quality modle: STC-1000 Switch the modes between cool and heat Control temperature by setting the temperature setting value and the difference value Temperature calibration Refrigerating control output delay protection Alarm when temperature exceeds temperature limit or when sensor error.