Our digital temperature switch is a temperature-sensing device that uses an RTD sensor inside an epoxy-filled surface mount cap. The operator adjustable digital temperature switch can be adjusted from -50°-200°F. Dual Adjusting knobs allow for quick operator adjustment. The system has OLED Display and a 5V DC power supply. Features: Refrigeration, double controlled defrost by temperature and time. User menu and administrator menu Adjustment separately, upper and lower limit temperature adjustment. Multiple defrost and alarming modes. Water-dripping time setting. Key copy (optional). Specifications: Fitment size: 71 (w) * 29 (h) (mm) Product size: 74 (w) * 34.5 (h) * 85 (d) (mm) Main function: Power supply :%, 50 / 60Hz Temperature measuring and control range : -50 ~ + 50 ° C Resolution : 0.1 Accuracy: ± 1 ° C Relay capacity of the compressor, defrost, and fan : 8A / 220VAC Sensor type : NTC (2m) Shell: gray flame retardant ABS Material Package Includes: 1 x  STC-9100 Digital Temperature Switch