Jamma 2 voltmeter adapter , add a +5V / +12V voltmeter to your JAMMA cabinet or supergun.
Just plug it beetween your JAMMA board and the JAMMA conn of your cab .
The integrated switch lets you choice if you want to check +5V or +12V .
Moreover,the voltmeter is just screwed to the PCB by a terminal block,so if needed you can remove it from the PCB and check the voltage anywhere you want .
The PCB also includes 4 X M3 standard holes,great to fix your adapter about anywhere.For example,great to use with PCB feet.
Thanks for looking !