235303 is a portable tool and appliance tester designed to perform electrical safety tests for tools and appliances in conformance with UL and ANSI requirements. It combines three essential tests in one instrument: ground continuity check with a 0.10 O failure threshold, leakage current measurement from 0 to 10 mA with 0.01 mA sensitivity, and insulation breakdown testing with adjustable voltage from 0 to 300 V ac. The unit features a 3.5-inch analog meter display, audible and visual failure alarms, and operates from a 120 V ac, 60 Hz, 15 A input power source. With dimensions of 10 H x 13.5 W x 10 D inches and weighing 28 lb, this heavy-duty instrument is ideal for in-plant OSHA safety surveys, production line testing, and maintaining compliance with safety regulations.