LM2596S Step-Down LED Voltmeter Module

LM2596 VoltmeterCreate similar products the most affordable, best-selling LM2596 module with voltage display Features1.Input voltage range:440VDC2.Output voltage range:1.25-37VDC adjustable3.Output current:2A4.voltmeter range: 0 to 40V, error ±0.1V5.Input reverse polarity protection6.Built in output short protection function7.Built in thermal shutdown function8.L x W x H =6.1*3.4*12 cm9.Weight: 22g10.LED digital voltmeter tube, the accuracy is adjustable function, can be aimed at your multimeteradjustable accurate.11.Press the rightkey to let the display show the input or output voltage. when the right “OUT” led light, it shows output, the left “IN” led show input.How to adjust the accuracy(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 youenter the output voltage calibration mode.Step 2,press the right button (normal speed), the voltage value is adding up a unit; Press the left