Monitor the electrostatic discharges. This is important for preventing damage in hazardous area such as oil and gas tank and pipeline that are flammable and explosive.
||: 9 VDC
||: AUTO: 0 to ±1.49 kV (low range);
±1.0 kV to ±30.0 kV (hi range)
Hi Range: 0 to ±30.0 kV
Low Range: 0 to ±3.00 kV
Ion Balance: 0 to ±300V
||: 25 mm ±0.5 mm; LEDs guide for correct distance