Volt and Amp Meter with Shunt - 100 AMP

NOTE: These Amp meters are more accurate towards the upper end of the
range. Do not buy a 100Amp meter if you intend to measure 1 Amp, it will
not work. If you will measure low amps like a camping fridge (typicaly 4 to
8 Amp), rather opt for the 20 Amp unit.