Meters with backlighting for low light conditions. Can be either surface or panel mount. (Separate 12V or 24V connection required for lighting) Ammeters: All models include either an internal or external shunt as noted. Includes appropriate external DC shunt when requiredSimple 4 wire connectionBacklit meter face (separate 12 or 24V DC backlight connections)Face size: 2-3/4"DIN Meters include a terminal cover included to prevent accidental short circuitDIN Meters are a standard European 72mm designDIN Meter face is white matte with black printed scale and knife-edge pointer