... 4-20 ma, etc), strong anti-jamming capability, widely used in steel industry, metallurgical industry, automotive industry, printing industry, food ... or 1.5 mm.20,Lead output: power supply, red; , black; Output: yellow, green3, the mechanical parameters1, Shell material: aluminum ... to use pure alcohol or water wet cloth to wipe. 5, if accidentally wet instrument, not in the sun insolates, should be ...