Ever worried about the life left in the batteries for your active pickups or your favorite effects pedal just before a gig? Keith McMillen Instruments has introduced the Batt-O-Meter, a battery tester designed for musicians to solve that problem.
The tester, which plugs into a 1/4″ jack input, can be used to check the voltage of your battery and even displays the hours of life left before it runs out of juice.
Here’s a demo:
The Batt-O-Meter can be found on most online music instrument stores for around $29.95. Get more details at the Keith McMillen Instruments web site.