MC101 series instruments: four-digit LED digital display, measurement accuracy 0.3%. Maximum resolution 0.1 degree for thermocouple and thermal resistance input. Maximum resolution 0.001 for analog input. Universal input supports 10 different types of thermocouples and RTD inputs, configurable by user at panel. Thermocouple and thermal resistance input signals can be set freely. Suitable for heating control as well as cooling control. Auto-tune function automatically determines optimal PID parameters. Displays temperature in Celsius (°C) or Fahrenheit (°F). Four-digit LED display range up to "9999". Ideal for kiln, furnace, oven, and incubator temperature control. Used across various industries for process temperature monitoring and control. Short shell design. Relay contact output with solid-state relay (SSR) voltage output (supports one group output only). Color: Black Material: ABS + electronic components Dimensions: 50 cm x 50 cm x 100 cm Package Contents: 1 x PID Digital Temperature Controller 1 x English User Manual Only the items listed above are included; other products are not included. Note: Lighting and display differences may cause slight variations in color between the image and actual item. Measurement error allowance is +/- 1-3 cm.