The MPP2000 is housed in a lightweight, ergonomically designed, rugged case that is IP54 rated. The unit can be easily carried “hands free” using the adjustable neck strap. In addition, the instrument can be used with any manufacturer’s surge generator (thumper).The MPP2000 is used to detect the acoustic and electromagnetic fields. Both fields are generated by the flashover at the point of fault, which has been generated by the HV impulse caused by a surge generator. Detection is via a lightweight ground microphone, which has a physical shield to reduce external wind noise.