... pid pressure controller Size: 96*96*100mm PID, ON-OFF control SMT technology designed CE KH103T intelligent pid pressure ... auxiliary power supply ,5VDC, 12VDC, 24VDC for sensor Alarm functionUp to 4 points outputs , Out1, Out2, Out3 ... economical intelligent pid controllerSize: 72*72mmthe main control is relay alarm ouput220VAC power supplymA output KH103T intelligent pid pressure controller