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In the Box: The kit comes with a gauge, a locking collar, a 19.6-foot wiring umbilical cord with pre-installed connectors for the gauge, button, battery system and other VDO gauges, and a sensor shunt that clamps to the negative battery terminal to measure amperage in and out. Some of these devices can be programmed with a battery’s amp capacity and keep track of capacity used and remaining. So, we’ve tested a few more sophisticated battery–monitor gauges that also measure current draw in amps, along with other parameters, and report that info in real time to help you manage power and its use. Anything above 12.5 volts is considered good to go, but at 12.1, you might be stuck on the sandbar.
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The power can be supplied by an engine alternator once it is running, but that’s a big train to pull when you add a multitude of DC electrical systems, such as navigation screens, radar, VHF, audio amps, a windlass, multiple sonars, livewell pumps, jack plates, shallow-water anchors, electric trolling motors and more.Ī simple voltmeter works for some DC systems. Even the electronic control unit on today’s marine engines-that brain that makes outboards and inboards do what we want them to do-requires substantial amperage to keep the engine running smoothly. Press down and hold the button till an alarm sound, then the meter is in operation mode.In today’s boats, electric power rivals the importance of engine horsepower.Keep pressing and releasing the button, till get the expected value. Press down the button and release it, each press increases 0.1V of the voltage setting.When the voltage display flashes, the meter is in the setting mode.
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Switch on the power, and release the button.When the power is switched off, press down the button and hold it.With installation kit and mating connector.If you want us to set the voltage indicator before its shipment, please contact us and send us the setting information (low / high voltage). Typical application: photovoltaic battery charging / discharging controller. The output is switched on when the voltage is lower than the low voltage setting, and the output is switched off when the voltage is higher than the high voltage setting. Type 3: both low-voltage and over-voltage protection.Typical application: electric vehicle / vessel. The output is switched on when the voltage is lower than the low voltage setting.
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Typical application: battery charger, DC power converter, communication system / remote control system DC source, etc. The output is switched on when the voltage is higher than the high voltage setting. TQZN-12 and TQZN-24 are adjustable for setting the low voltage (empty level, OUTPUT ON) and high voltage (full level, OUTPUT OFF), typically applied for switching automatically on / off a DC relay. With a high capacity MOSFET output (maximum current rated for 4 amperes), these meters offer additional control function to users, helping to realize the automation of system. The DC voltage meters TQZN-12 and TQZN-24 are used as battery charging / discharging level indicators (BDI) for electric vehicle / vessel, battery charger, solar power generating system and other battery power (DC source) driving / conserving systems. 12V / 24V Digital DC Voltage Indicator Accurate Numeric Display Of DC Voltage, Adjustable & Optional Control Function