Digital LCD PID REX-C100 Controller Set + K Thermocouple + Max.40A SSRThe PID controller kit is for variety of industries or home projects heating or cooling applications. It comes with dual digital PID REX-C100 Controller + max.40A SSR + K Thermocouple for your use. PID controller set comes with digital PID REX-C100 controller + max.40A SSR + K Thermocouple for your use. This PID temp control is specially designed for one phase solid state relay. Proportional Band (P): 0～full r-ange (ONOFF control when set to 0). Integral t-ime (I): 0～3600 sec (no integral action when set to 0), derivative t-ime (D): 0～3600 sec (no derivative action when set to 0). Setting value (SV) is identical to measuring r-ange (PV). REXC100 Controller features a 1.3 digit setup for easy configuration Measuring accuracy of ±0.5% ensures precise temperature control Coldend compensation tolerance of ±2℃ (modifiable by software in 0 to 50℃) High resolution of 14 bits for accurate readings Fast sampling cycle of 0.5 seconds for realtime monitoring