... universal contro ModelDescriptionECU-321Pi controller,3UI,1 TIinternal,2DO(relay),1A0,MODBUS communicationECU-321LPi controller,3UI,1 TIinternal,2DO ... ,MODBUS communicationECU-402-LPi controller,4UI,1 TIinternal,2DO(relay),0A0-V: voltage24 Features· Standalone electronic universal controller with ... be set from 0 units to 1,000 units. The start and end points of output voltage can be any value ...