32″ 3 Wire 0.1V to 100V Blue LED Display Mini DC Voltmeter by electrca

• Test voltage: 0.1 – 100V
• Working current: <20mA
• Display Size: 0.32 inch
• Display Colors: Blue
• Error: +-1%

Simply connect the Red wire to a positive power supply from 3 to 28VDC, and black to the common ground For Power and Load. Finally, connect the Yellow SENSE wire to +Ve and Balck (Which is common for Load and Power) whatever you want to measure the voltage. The display has a microcontroller that will read the

Simply connect the Red wire to a positive power supply from 3 to 28VDC, and black to the common ground For Power and Load. Finally, connect the Yellow SENSE wire to +Ve and Balck (Which is common for Load and Power) whatever you want to measure the voltage. The display has a microcontroller that will read the voltage, compare it to a stable reference and display the voltage with 0.1V precision on a 3-digit 0.32” 7-segment display. It can read from 0V to 99.9VDC so it will be good for any electronic project! The meter draws approximately 20mA to power the microcontroller and display

voltage, compare it to a stable reference and display the voltage with 0.1V precision on a 3-digit 0.32” 7-segment display. It can read from 0V to 99.9VDC so it will be good for any electronic project! The meter draws approximately 20mA to power the microcontroller and display