Keith McMillen Batt-o-Meter

Keith McMillen Batt-o-Meter, Battery Test Device*Avoid the burn - Stop Tongue Testing Batteries!*@+@+*The Batt-O-Meter allows the battery test in effect devices and active instruments without having to remove the battery. This helper can check all the 1.5V and 9V batteries, which always roll loose in the guitar case. Thanks to the Batt-O-Meter, you now know when a battery needs to be replaced. @+@+The Batt-O-Meter. The battery tester for musicians. @+@+, Full control of the battery status, For effect pedals, guitar, basses etc. as well as for individual batteries, Connect Batt-o-Meter simply to the jack input of the device to be tested, keep the test button pressed and the battery power is displayed, Max. 10, 23 Volts