TREX-C400 PID temperature device 1.PI control, PD control, PID control 2.On-off control, SSR control 3.self-learning TREX-C400 PID temperature deviceWidely used ... ,0~10V,0-10mA,4-20mA etc.Control modePID ; P, P+D, P+I ; ON/OFF control (Hysteresis error could be set)Main ...