... for easy voltage reading, Digital Battery Tester 2 different scales for 1.5V and 9V batteries Digital Battery Tester LCD display for easy ... voltage reading2 different scales for 1.5V and 9V batteriesThe values ... level, red for flat levelFor D, C, AA, AAA and 9V batteries: mono (L)R20/D, (L)R14/C, (L)R6 ...