1Wide Application: Battery volt checker is suitable for checking AA, AAA, C, D, 9V, 1.5V button cell and all household batteries. 2Battery Free: Battery tester powered and activated by the battery being checked, allow you can quickly get a diagnosis of your battery health. 3Quickly Testing: Battery checker by testing the battery voltage quickly judge whether the battery is good or bad, and display on the dial screen. 4Portable Size: Universal battery tester is small in size and light in weight, which is easy to carry and can be put it into the drawer or pocket. 5Excellent ABS: Battery capacity tester made of ABS material, which is the great tool for checking the condition of your household batteries. Item Type: Battery Tester Material: ABS Purpose: Battery capacity checking Size: Approx. 5.6 x 5.3 x 1.9cm / 2.2 x 2.1 x 0.7in Weight: Approx. 44g / 1.55oz Distinguish: GOOD is green, WEAK is yellow, REPLACE is red. 1 x Battery Tester