Description Universal Button Battery Checker Tester AA AAA C D 9V Don\t for Guess Which Batteries to Keep and Which to throw Away,Place your battery between the two points of the battery tester, and the easy-to-read display will tell you instantly whether you have a dud, or if you can eke out another few minutes of battery life. Checks power level of all 1.5V 9V batteries Easy to read, colour coded meter indicates power level Tests 1.5V miniature cells Three result: red=replace, yellow=low power, green=good If needle does not move,check that battery is touching both contacts before assuming that it is completely dead. The battery tester may be used to test the following sizes: 1.5V: AAA,for HP16, MN2400, R03 AA, HP7, MN1500, UM3 C, HP11, MN1400, SP11, LR14, UM2 D, HP2, MN1300, SP2, R20,UM1 9V: PP3, MN1604, 6F22, 006P NOTE: The battery tester is activated by the battery being checked. Keep test times as short as possible, to avoid unnecessary battery drain. Color: Black Item size: 110*59*25mm Note:AAA battery not include Packing content: 1 x 168D PRO Battery Tester