The Metravi 55TRMS is a 5 1/2 digit Bench Type Digital TRMS Multimeter, with a 256x64 pixels matrix LCD display. It is powered by mains current making it a very stable and reliable, high accuracy Digital Multimeter. It can measure AC/DC Voltage, AC/DC Current, Resistance, Capacitance, Frequency, Diode and Continuity with a very high precision. The storage and read back features along with the RS232 and USB interface makes it an ideal instrument for two-way communication with the computer.