Two buttons on the side for testing 9 volt batteries
Test multiple sizes of batteries in one unit
Tests: AA (pencil cells), AAA, 9 V batteries all kinds of button cells.
Easy one push test – Just fit the battery in the sliding arm, and the scale will move to show the power level. For 9 V batteries use side panel contacts. A very compact, portable and useful gadget, must have for every home and office.