Features: The battery tester can accurately check the remaining energy. The digital battery tester has clear LCD display is intuitive and easy to read. The protable battery tester is lightweight and compact, easy to carry and store. 3 different colors to display level: red indicates out, yellow indicates low, green indicates enough. The battery checker- can be used to test 1.5V AA AAA batteries, 1.5V button cell( not 3v), 9V battery, etc. Specifications: Material: ABS engineering plastics Length: approx 9cm/3.5in Power supply: 1.5V LR44 cell Display: LCD Note: Please allow 1-3cm error due to manual measurement. pls make sure you do not mind before you bid. Due to the difference between different monitors, the picture may not reflect the actual color of the item. Package includes: 1x Digital Battery Tester The battery tester can accurately check the remaining energy. The digital battery tester has clear LCD display is intuitive and easy to read. The protable battery tester is lightweight and compact, easy to carry and store. 3 different colors to display level: red indicates out, yellow indicates low, green indicates enough. The battery checker- can be used to test 1.5V AA AAA batteries, 1.5V button cell( not 3v), 9V battery, etc.