Review on Gardner Bender GDT-3190 Digital Multimeter, 4 Function, 14 Range, AC/DC Voltage, Resistance & Battery Tester, Manual Ranging, Auto-Off, 1/Each by Eric Owens

This multimeter is a piece of junk. There are no instructions and installing the battery is next to impossible. You have to go to the internet for a useless manual and it's in such small print that you need a microscope to read it. To insert the battery you have to disassemble the device, which I didn't do because you have to open it with a tool and I didn't want to damage it. Do yourself a favor and get another one. I go to a hardware store to really see which one I want to buy.