... series PID economic temperature controller Intelligent digital temperature controller. PID , ON/OFF control , Auto-tuning function . It is a type of economic secondary ... Alarm InputMeasure rangePanel size TC4-M Relay and SSR withoutK , J , R, S, B, T , E, S, N , PT100 , CU50, CU1000 ... . SSR output:24V voltage , 30mA load TC series PID economic temperature controller