PFM-711A Electrostatic Field Meter
The PFM-711A Field Meter is an accurate electrostatic field measuring device. The PFM-711A circuitry is a digital, electronic chopper design, which allows the instrument to make electrostatic field measurements in areas where ionized air is present.
For accurate, repeatable performance, the PFM-711A must be grounded during normal operations. Used by itself, the PFM-711A will measure electrostatic fields emanating from virtually any flat surface or object.