Fit For: AA/AAA/C/D/9V/1.5V Button Cell Battery (Batteries not included) This will keep you from wasting good batteries by throwing out good ones. Small and practical - Simple but effective little battery tester checker(BT-168) , compact size and lightweight,easy to carry. Testing defferent battery types - It works with standard and rechargeable household batteries: AA, AAA, C, D, 1.5V,9V and button type. Perfect for home use - 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. Color: black Require no battery to operate - 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. No batteries required. It is activated by the battery being checked.Perfect for home use - 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.This will keep you from wasting good batteries by throwing out good ones. Application: 9V Batteries: PP3, MN1604, 6F22, 006P1.5V Batteries: AAA, HP16, MN2400, R03. AA, HP7, MN1500, UM3. C, HP11, MN1400, SP11, LR14, UM2.D, HP2, MN1300, SP2, R20,UM1All kinds of button cell Material: plastic size: 11*6*2.5cm Package Contents: 1* BT168 Universal Battery Checker Tester Only the above package content, other products are not included. Note: Light and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.