Review on 🔌 Finder Digital Voltage Tester Pen: Versatile 12V-220V DC & AC Voltage Detector for Home Appliance Repair and Detection by Donnell Cursed

You can't get a DC reading without touching a bare wire. Batteries do not have a plus and minus indicator inside the tool. There is no instruction manual with packaging. There were some instructions on Revain where the article was viewed. When checking the air conditioning there was a display with numbers but they were difficult to read because they were so small. I opened up the tool to check the batteries and there was a very thin wire (22 gauge I think) but it was pinched when the tool was set up before I got it. When checking batteries like AA, it only lights up to let you know the battery is charged, but you have to guess the charge level by the intensity of the indicator light.