Extech Instruments

Model 380353 high-voltage megohmmeter performs insulation resistance measurements up to 400 at 250, 500 and 1000V. The analog display allows the user to easily observe changes in measurements. Features include ac voltage measurements to 600 V, continuity measurements to 50, fuse protection and automatic discharge circuit. The unit comes with test leads, 8 AA batteries, spare fuse, shoulder strap and hard carrying case.