Keith McMillen Instrument BATT-O-METER Battery Tester   Our
Price: $22.05List Price: $29.95 You save 26%! (Low Price
Guarantee) In Stock     • saves you from risk and stress before
a performance   • saves you money by extending the life of each
battery   • save the environment by reducing the number of
discarded batteries   Quickly and accurate measure:    • how
many volts a battery is delivering   • hours left before the
device runs out of power      (Requires 9 volt battery, not
included)  Frequently Asked Questions:  What makes Batt-O-Meter
work? Stomp boxes and instruments use a standard stereo 1/4”
phone jack and devices sense the insertion of the 1/4” mono plug
to turn on the power. Batt-O-Meter measures the Voltage and
Current to let you know how many more hours the battery will
work. A micro-processor within the unit allows the device to
intelligently determine the different loads that can be put on
the battery and calculate the power in hours remaining. This
eliminates the need for extra buttons and