English 
idgital voltage gauge boat
Inland navigation ships are relatively simple. They usually have oil gauge, voltmeter and water temperature gauge (many even omit this and take water directly from outside the ship for cooling). The of ocean going ships is much more complicated, including theodolite, sextant, barometer, thermometer (not only to measure oil and water temperature, but also to measure air temperature, which is used to record the logbook), voltmeter, ammeter, anemometer, gyroscope (used to monitor the ship's inclination), and those professional and special equipment.Today, let's talk about the boat or marine digital voltage gauge.
For normal vehicles, the battery voltage should be 12.5V, and the working voltage of the generator after starting should be 14V ± 0.5V; Turn on the ignition switch in the morning. If the voltage is lower than 12V, it may be battery aging, circuit leakage or the vehicle has not been used for a long time. The instantaneous voltage of ignition by turning the key should generally not be lower than 9V. If the voltage is lower than 9V, either the battery should be replaced or the battery should be charged. It can be known according to the length of time of purchasing the battery (except that it has not been used for a long time).
Another case is that the bearing of the starter is worn and the operation is not flexible, resulting in the increase of starting current and the decrease of battery voltage. After startup, if the voltage is lower than 13V, the generator belt may slip, there may be a problem with the generator, or the power load of the whole vehicle is too heavy (try to turn off all consumers). If the voltage is higher than 14.5V or even more than 15V, the generator must be broken and can't automatically adjust the voltage. Turn off the engine quickly! Otherwise, the light person will burn a light bulb, and the serious computer board in the car will be burned out. When driving suddenly stalls or the voltage is very low. It indicates that there is a short circuit You can immediately disconnect the battery and make an emergency call to prevent spontaneous combustion.
The red and black wires are the positive and negative poles of the voltmeter. Our boat or marine digital voltage gauge has good quality and our service is good.When refitting a voltmeter for cars, boats and marine, you can choose our company's products.
Get a Quote / Info