... had used our flow meters,just as USBY-A Level meterSince it passed the ISO9001 quality system certification in ... 2.7v, display under-voltage index margin, anti-detonation type.bImpulse output type :External power supplier+12VDC or +24VDC. Remote connected ... computer collector, remote distance 250m, plain type and anti-detonation type.C4-20mA output type: External power supplier+24VDC (double line). ...