The BK Precision 2831E True-RMS Auto-Ranging Benchtop Dual-Display Digital Multimeter is versatile and suited for applications in education, service and repair, and manufacturing requiring basic and reliable measurements. This unit enhances productivity with built-in math functions and USB connectivity. The math operations of Rel, Max/Min, dBm, dB, percentage, and Hold provide educators with a convenient tool to teach basic math concepts. The BK Precision 2831E True-RMS Auto-Ranging Benchtop Dual-Display Digital Multimeter takes typical multimeter measurements such as volts, ohms, and amps with great accuracy, stability, and basic VDC accuracy of 0.03%. This unit is also capable of measuring frequency, period, continuity, and performing diode tests. Readings can be taken at a maximum rate of 25 readings per second with measurement rates selectable between slow, medium, and fast. The BK Precision 2831E True-RMS Auto-Ranging Benchtop Dual-Display Digital Multimeter was designed for users requiring a basic and dependable meter with a broad range of features.