Input Voltage
Input VoltageElectrical safety is of utmost importance when installing any electrical device on a boat. If the device is suitable to install by non-trained personnel, the installation directions must be carefully followed. Voltage, current, and power specifications must be adhered to.
Manufacturers almost always specify these values in their manuals. That’s one reason the manuals are easily found on this website. Before you purchase your unit, you can determine if your boat is correctly setup to connect to the instrumentation you need.
Fish finders and GPS units usually operate around the 12 volt level. Commercial
units may operate at 24 volts.