Clock / temperature & voltmeter

Universal black fuel oil fuel gauge meter. Black meter background. with red / orange needle. Diameter 52mm Height 60mm all inclusive ...

24 hour clock. voltmeter from 6 to 19.9 volts. Alarm of over voltage or under voltage configurable from 8.0 volts to 13 volts. Warning ...

Warning when the battery voltage drops below 11.5 volts and rises above 15.5 volts. For an accurate assessment, Ko ...