MC101 series inst ents: four-digit LED digital display,measurent accuracy 0.3%.the maximum resolution 0.1 degree at thrmocouple and thermal resistance input,the maximum resolution 0.001 at analong input.Universal input, support 10 different types of thermocouples and RTD inputs by customers selected at panels.the thermocouple and thermal resiatance of inst ent input signals can be set freely. Uses it in Heating Control as well as for Cooling controlAuto-tune function can find the best PID parameter automaticallyDisplays temperature in Celsius (Celsius) or Fahrenheit (Fahrenheit)Four digits LED display can go up to "9999"Uses it for Kiln,Furnace,Oven,Incubator temperature controlIt is used in various industries to control and monitor process temperatureShort ShellRelay contract + solid-state relay( SSR) voltage output (just support one group output)Colour:BlackMaterial:ABS+electronic componentsSize:5.0 cm x 5.0 cm x 10.0 cm Package Contents:1x PID Digital Temperature Controller1x English User Manual Only the above package content, other products are not included.Note: Light shooting and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.