1, No movable parts 2, Suitable for variable diameter demands 3, Extremely low pressure loss 4, Easy ... for variable diameter demand . 5, Switching value can be adjusted continuously. 6,Extremely low pressure loss . 7,Compact structure . 8, LED indicator ... NPN type ), Max.4A( Relay type )Unload current: Max.80mAFlow indicator : LED (6)Set type :potentiometer setProof Pressure range: 100barTemperature ...