No power supply required
Uses 5 LEDs to indicate voltage
Monitoring voltage range:
6 to 10V DC or 9 to 13V DC
PC board dimensions: 2.5" x 0.8" (64mm x 20mm)
This circuit is a handy "visual" DC voltage monitor constructed using 5 LEDs and an Integrated Circuit. It measures DC voltages from 6 to 10V DC or 9 to 13V DC. It does not need a power supply since it is supplied by the voltage under measurement. It is ideally suited for applications such as monitoring car battery voltage.
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