● Two-line system, three-line system transmitter, current source input detection end isolation type safety gate, provide isolated power to the transmitter in the danger zone, transmitter produces 4-20MA signal (or voltage signal) current signal isolated from the dangerous side to the safety side, support HART communication.
● DRG-1100 one in and one out
● DRG-1101 one in two out
● DRG-1120 Two in two out

● 4-20mA output operation end isolation gate, the safety zone of 4-20MA signal isolation transmitted to the dangerous side, drive the field of actuators, valves and other equipment.
● DRG-1200 in and out
● DRG-1220 two in two out