Description The BT-168D is a practical and universal battery tester, which is suitable for testing the following types of batteries such as 9V battery, 1.5V AA/AAA batteries, Cell button, etc. There are 3 different results for 1.5V battery and 9V battery. With easy and safe to use, it is really a wonderful battery tester for choice. Features - Model: BT-168D. - Color: mainly black. - Shell material: durable hard plastic. - and Universal Digital LCD 9V AA AAA Cell Button Battery Tester Checker. - Suitable for testing the following types of batteries: 1. 9V battery: PP3, MN1604, 6F22, 006P 2. 1.5V battery: AAA: HP16, MN2400, R03; AA: HP7, MN1500, UM3; C: HP11, MN1400, SP11, LR14, UM2; D: HP2, MN1300, SP2, R20, UM1. - Three results of 1.5V battery: 1.28V-1.5V means good, 1.15V-1.27V means low battery, lower than 1.15V means replace. - Three results of 9V battery: 7.8V-9V means good, 6V-7.7V means low battery, lower than 6V means replace. - Simple and practical design, easy and safe to operate.Package list: 1 * BT-168D Universal Digital LCD 9V 1.5V AA AAA Cell Button Battery Tester Checker (Black)