COLEMETER® MINI LED DISPLAY VOLTMETER BACKLIT RED 30 VOLT (Miscellaneous)
I was happy by receiving my two aircraft ordered, a 5 volts, the other 30 volts. If the 5 volt operating correctly, that 30 volts is "stuck" to 10.3 volts. Can not make it display more than 10.3 volts, despite several tests of multiple power sup