empowering creative people

    Mini 2-wire Volt Meter (3.2 - 30 VDC)

    SKU: ADA460

    $13.50 AUD, inc GST

    More Views

    Mini 2-wire Volt Meter (3.2 - 30 VDC)
    13.5 AUD

    SKU: ADA460

    $13.50 AUD, inc GST
    1 reviews 0 5 5
    112 units ship in 4 to 7 days (delivered by Mon, 6th of Mar)

    Put a voltage meter anywhere with this very handy display. These are often used by RC hobbyists for keeping track of batteries but Adafruit 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 microcontroller and display. This particular LED display is a nice vivid green, which Adafruit found very readable. Mounting tabs make this module easy to attach to any box or plate.

    Technical Details


    • PCB (with mounting holes): 33mm x 15mm / 1.3" x 0.6"
    • Display: 23mm x 14mm / 0.9" x 0.6"0
    • Combined Depth: 10mm / 0.4"
    • Weight: 4.8g

    Power specifications:

    • 3.2V to 30V DC measurements
    • 0.1V precision
    • 3-4mA draw
    • Green LED display
    • Use with positive voltages only!
    Documentation and Resources:

    Product Comments

    Customer Reviews

    1. Review by Steven verified purchaser

      This little meter deserves a six star rating, its a handy tool that has so many applications, its easily adjustable with a multimeter to suit anything in its range, great for automotive and camping situations! I'm even puting one in the boat! Should be sold as a ten pack! (Posted on 29/03/2016)

    We deliver Australia-wide with these options:

    • $3 for Small Items (4-6 days, not tracked, only available on selected small items)
    • $6.95 for Standard Post (2-4 days, tracked)
    • $8.32 for Express Post (1-2 days, tracked)
    • Pickup - Free! Only available to customers who live in the Newcastle region

    If you order lots of gear, the postage amount might increment based on the weight of your order.

    Our physical address:

    Unit 18, 132 Garden Grove Parade
    NSW, 2289

    Please checkout our customer service page if you have other frequently asked questions such as "do we do purchase orders" (yes!) or "are prices GST inclusive" (yes they are!). We're here to help - get in touch with us to talk shop.