The Philmore 660VP is a professional-grade voltage and amperage tester. It features a digital LCD display, a built-in flip-out stand, and a variety of testing functions. The tester provides correct, reliable readings of AC and DC voltages up to 600V, current of up to 10A, frequency of up to 20kHz, capacitance range of up to 100uF, resistance range of up to 50K Ohm, and temperature range of up to 500°F (260°C). It also has a backlit LCD display, continuity buzzer, audible alarm circuits, overvoltage alert, overrange indicator, and a multi-directional switch which allows for quick and easy change of test results. The tester is also protected against mis-operation and overload by an auto-reset safety fuse. The Philmore 660VP is an ideal tester for both professional technicians and hobbyists.