1, Detection of ferrous metals 2, Zero speed working 3, wider Work space:more than 3mm 4,accuracy duty cycle output parameters:VCC( working voltage):+5~+24 VICC ( working current)<15 mAVOL ( output low level potential)≤0.4 VVOH ( output high level potential)≥VCC-0.5 VIOUT ( output current)20 mATr( rise time)2(CL=10pF) usTf (fall time)2(CL=10pF) usd ( working distance)1~3 mmf (frequency)0~20 kHzD( ...