Features: 1.Universal Button Battery Checker Tester AA AAA C D 9V 2.Don't consider Which Batteries to Keep and Which to throw Away, 3.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. 4.Checks power level of all 1.5V & 9V batteries 5.Easy to read, colour coded meter indicates power level Tests 1.5V miniature cells Descriptions: 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, HP16, MN2400, R03 AA, HP7, MN1500, UM3 C, HP11, MN1400, SP11, LR14, UM2 D, HP2, MN1300, SP2, R20,UM1 9V: PP3, MN1604, 6F22, 006P Specifications: Original box: NO Color: Black Item size: 110x59x25mm Type: Household Battery Tester DIY Supplies: Electrical Model Number: Battery Tester Package content: 1 x Battery Tester Note: The battery tester is activated by the battery being checked. Keep test times as short as possible, to avoid unnecessary battery drain. AAA battery not included