HO-P/SP33 Series LEM HO-P/SP33 series multi-range current transducers for the electronic measurement of current. The HO-P/SP33 series can measure dc, ac and pulsed current with galvanic separation between the primary and the secondary circuit. Features and Benefits Hall effect measuring principle Low power consumption Fixed offset and sensitivity Small size and space saving High immunity to external interference Suitable for industrial applications Factory calibrated