An “on-board” (with self-adhesive base) voltmeter can be mounted on a motorcycle, which continuously displays the voltage in the system during operation, so that the appropriate charge level can be constantly checked and monitored.
It is important to know, that you have to connect the on-board voltage meter to your motorcycle system which is only energized, when the ignition is on (otherwise the voltage meter may drain the battery in weeks)
Size: 3 x 2 x 1 cm
Length of the wire: 60 cm