... 7v, display under-voltage index margin, anti-detonation type.bImpulse output type :External power supplier+12VDC or +24VDC. Remote ... collector, remote distance 250m, plain type and anti-detonation type.C4-20mA output type: External power supplier+24VDC (double ... with computer collector, remote distance 500m, anti-detonation type.dSub-body remote indication: External power supplier~220VAC, intelligent ...