A hand held, compact, electronic digital chopper field meter. Used forlocating and measuring electrostatic fields. Use alone to measure fields ondefined surfaces and materials. Red "Bulls Eye" ranging lights assist inobtaining reproducible measurements.Use with CPM-720A Charge Plate Assembly and PCS-730 ChargingSource to balance and test ionization blowers and devices. May be usedto measure charge generation related to personnel, floors, chairs, carts,equipment, packaging materials, etc. Analog output allows documentationof measurements when used in conjunction with X-Y plotter or analog datarecording device. (Recording device not supplied.)PFM-