Was: 8.25
Price: 4.49
Description This product is a 180 KHz fixed frequency PWM buck step down DC DC module capable of driving a 5A load with high efficiency low ripple and excellent line and load regulation The module with a voltage meter to display the input voltage and output voltage and the voltage can be corrected through the button to improve the accuracy of the voltmeter Features 1 LED power indicator 2 Button to switch measurement of the input or output voltage and LED indicates the current measurement of the input or output voltage The nixie tube can be turned off by another button Mentioned states are able to be memorized is not lost even if the power is disconnected On board marked IN LED is turned on the nixie tube display input voltage value OUT LED bright display is the output voltage value 3 Special launch the voltmeter calibration function will never exist voltmeter inaccurate Voltmeter calibration method 1 Output voltage calibration stepsStep 1 adjust the right button so that OUT LED lighted the voltmeter shows the value of output voltage Press the right button for more than 2 seconds release voltmeter and OUT LED flashes in synchronization so that you enter the output voltage calibration mode Step 2 press the right button normal speed the voltage value is adding up a unit Press the left button minus a unit Due to a unit is less than 0 1V the minimum voltage display to 0 1V so you need to continuously press 1 5 times to see the voltmeter change
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