The Hi-Z Megmeter is a portable battery-powered HVDC source and meter. Models are available for withstand testing insulation up to 42KV DC, and measuring leakage current as low as 0.001 microamp when testing underground cable, safety gloves, vacuum interrupters, HV resistors and all types of insulation. The Megmeter comes in two models: portable Model VMT15, with a range of 0-15kV DC, 0-260 microamps or 1,000 microamps; and Model VMT42, with a range of 0-42kV DC, 0.001-130 microamps or 0.001-500 microamps, with adjustable current trip. The meters are 12V battery-powered for isolated field use. They also operate as an HV low current source. Ross Engineering