Although designed for use with the E-Field Detector, this can also be used in any situation where an earthed working surface is required to neutralise electrostatic charge. Useful to help negate any environmental fluctuations in charge (e.g. relating to ambient humidity, floor surfaces etc.) that may present erroneous readings. The E-Field Detector (ECT-550-100) can be connected to the grounding plate and to an earthed metal water pipe, to show the dissipation of electrostatic charge.