debe
Active Member
Purchased a few of these of Ebay for $1.36 + .81c frt. They are 3-30V DC digital volt meters, they come in red blue & green displays. Went for blue as they were advertised to draw the least current, this one draws 13ma reading an old 9v battery. On the back there is a pot for adjusting the accuracy of the reading if you aren't happy with it. In real life the colour of the display is even, just it was very difficult to get a picture due the multiplexing of the display, camera didn't like it.