Description: Simple but effective little battery tester checker, compact size and lightweight,easy to carry. It works with standard and rechargeable household batteries: AA, AAA, C, D, 1.5V,9V and button type. Easy-to-read ,the analog display needle moves on a color-coded, calibrated scale to quickly identify "good" (green), "low" (yellow), and "replace/recharge" (red) battery status. Great small tool can tell you if your battery is good, low, or needs to be replaced. A must buy for anyone who uses regular or rechargeable batteries on a regular basis. 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. Specifications: Color: black. Material: plsatic. Size: 110*59*25mm. Notes: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement. Package include: 1 * Battery Tester. Compatibility: Universal button battery checker tester for AA/AAA/C/D/9V/1.5V How to use: 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 Portability: The battery tester is compact and lightweight, easy carry to anywhere for use Easy to read: Colour coded meter indicates power level. Three result: red=replace, yellow=low power, green=good Function: Great small tool can tell you if your battery is good, low, or needs to be replaced. A must buy for anyone who uses regular or rechargeable batteries on a regular basis