2 Wire Voltmeter display Module

This is a very small 0.36" Display Digital voltmeter. It can be used to measure DC voltages ranging from 3.3 volts to 28 volts.

Put a voltage meter anywhere with this very handy display. These are often used by RC hobbyists for keeping track of batteries but we thought it would be great on a breadboard or enclosure. This is the 2-wire version of the volt meter, two wires are used to power it and measure at the same time. We also have a 3-wire version that measure a wider range of voltages.

Simply connect the red wire to the positive supply, and black to negative ground. 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 7-segment display. It works from 3.2V up to 30V so it will be good for nearly any electronic project! The meter draws 3-4mA to power the microc-ontroller and display. This particular LED display is a nice vivid red, which we found very readable. Mounting tabs make this module easy to attach to any box or plate.

Features and Specifications of 2 Wire Display

• Measure Voltage : DC 3.3-28 V two-wire access.

• Current Consumption : < 15 mA.

• Accuracy : 0.1 V.

• Refresh Speed : Approx 200mS/time.

• Weight : 20 gm.

• Display on Voltage : 2.5 V.(but not measure accurately upto 3.6V).

• Dimensions : Approx 33 x 15 x 10 mm(L*W*H)

• Display: 23mm x 14mm / 0.9" x 0.6"0

• Combined Depth: 10mm / 0.4"

• Mounting Hole : Approx M3.

• LED Color : Red color

• Working Temperature : -10~65

• It is easy to read, install and use

• It is self-powered version and supports Reverse polarity protection.

• No power supply needed

• Highest input : DC 28V (higher than 28V has the risk of burn up)

• Minimum input : DC 3.6V(below than 3.6V,measurement is inaccurate or does not show)

• 100% Brand new and high quality.