The Amprobe VPC-31 electrical tester is a non-contact voltage and continuity tester for measuring alternating current (AC) and direct current (DC) voltage and continuity on live electrical wiring. This average-sensing meter provides accurate readings when measuring linear loads, where the current or voltage has a sinusoidal waveform. Three-digit, 1,000 count backlit LCD display for viewing in low-light conditions The tester measures AC and DC voltage up to 1000V and indicates ten common voltage levels for AC and ten for DC. The backlit LCD display indicates precise voltage measurement. An LED light and buzzer indicate continuity. A solenoid tester-like shaker indicates the presence of AC voltage. Bi-color LEDs indicate safe and dangerous voltages (above 55VDC or 30VAC). The tester is safety rated to European Standards 61010-1 Cat IV, 600V and Cat III, 1,000V. The ground fault circuit interrupter (GFCI) test feature allows the unit to test GFCI outlets and breakers. The casing is ingress protection (IP) treated to IP65 for complete protection against dust and water jets up to 6.3mm in diameter. The unit is autoranging on all ranges. It is powered by two AAA batteries (included). The VPC-31 is designed for use by electricians, electrical contractors, and mechanics. Specifications Power supply AAA batteries (two, included) AC voltage range 0 to 1,000V DC voltage range 0 to 1,000V AC current range 0 to 400A Weight (including batteries) 0.485lb./220g Safety standard met International Electrotechnical Commission (IEC)/European Standards (EN) 61010-01 Cat IV 600V and Cat III 1,000V Ingress Protection (IP) rating IP65, for protection against dust and water jets up to 6.3mm in diameter Dimensions 9.17x 2.24 x 1.57 inches / 233 x 57 x 40mm (H x W x D)H is height, the vertical distance from the lowest to highest point; W is width, the horizontal distance from left to right; D is depth, the horizontal distance from front to back.Electrical test meters report electrical circuit properties, such as voltage, resistance, capacitance, and continuity. Available in handheld or benchtop models, they detect electrical problems in equipment, wiring, and power supplies. A variety of probes, clamps, or leads connect the meter to a circuit or device. Single-function meters, such as battery testers and voltage testers, measure one property of a circuit; multimeters measure multiple properties. Electrical test meters display information either in analog form using a needle that moves on a calibrated scale, or in digital form using digits or a graphic representation on an LED screen. Meter choice includes the electrical properties to be measured and the anticipated range of results, and should have a rating that is higher than the maximum value of the anticipated range. An electrical test meter has multiple settings that correspond to potential ranges of values for the properties it can measure. A manual ranging meter requires the operator to flip through different settings until the correct range is reached. An autoranging meter cycles through range settings automatically until it reaches the correct range. Amprobe manufactures electrical testing equipment for commercial, industrial, and home use. The company was founded in 1948 and is headquartered in Everett, WA.What’s in the Box?VPC-31 Electrical Tester(1) Set test leads(2) AAA batteriesInstructions