AC Electric Field Meter
This meter measures AC electric field in the vertical direction (same direction as the long axis of the meter). It has a wide frequency range (40 Hz - 20 KHz) and high accuracy (+/-2% of reading +/- 1 count) with an electric field strength range of 19 999 V/m and resolution of 1 V/m. The sensor is in the top 1/3 of the meter.