Doric Instruments 1000 Pro Series Digital Panel meters are suitable - Manual (Page 5)

4
Chapter 2 Setup
WARNING!
Dangerous voltages are present at the screw terminals. Always
remove power before working in this area for wiring,
disassembly, and all other activities that involve proximity to
electrical circuitry.
NOTE: The 1000-XCTV, 1000-XDCA and 1000-PROC must be
configured to display the desired range. To access the main
board and its configuration jumpers, remove the front panel lens,
lift the display above and over the latch located at the bottom
front of the housing, and slide the assembly out of the case.
To begin making measurements, wire up the voltage, current, or
frequency-input wires plus AC line power to the instrument.
Because dangerous line voltage is present at the rear terminals
when power is applied, hook up the input signal wires first, then
the power. Plug in line power only after all connections are secure
to the rear screw terminals of the meter. Viewing the meter from
the rear, the screw terminals are numbered 1 through 8 from left to
right according to the drawing on page 6.