Fluke 87V True RMS Industrial Digital Multimeter
Fluke is the biggest manufacturer of digital multimeters around. This unit provides both manual and auto-ranging capability in the same meter. It will measure up to 1000 volts AC or DC, plus 10 amps, 20 amps for short periods of time. It comes with a selectable filter for accurate voltage and provides a true RMS reading for AC. An analog bar graph on the display helps see what is happening quickly, for fast changing or unstable voltage signals. It also has a built-in temperature measurement function for HVAC technicians.