1、Made of ABS material, with insulation and long service time characteristics, you do not need to change it often. 2、Support different battery types: This tool can be used for standard AA battery, AAA battery, 9V battery, 6F22 rechargable battery and 1.5V button cell battery. 3、Digital display allows you to read and use it more easily, the test results are clear at a glance: green area means the battery is in fine condition, yellow area means the battery is low, and red area means it needs to be replaced or recharged. This small but effictive battery checker is an indispensable tool for your daily home maintenance and work. It works with standard AA,AAA, 9V, 6F22 and 1.5V button cell battery. If you need it, come and have a try, it will not let you down. Features: Made of ABS material, with insulation and long service time characteristics, you do not need to change it often. Support different battery types: This tool can be used for standard AA battery, AAA battery, 9V battery, 6F22 rechargable battery and 1.5V  button cell battery. Digital display allows you to read and use it more easily, the test results are clear at a glance: green area means the battery is in fine condition, yellow area means the battery is low, and red area means it needs to be replaced or recharged. Portable size, light weight and easy to carry, you can store and carry it to any place you want to use. Perfect for home use, with this tool, you can check the condition of your home battery at any time and replace the broken battery in time. Specifications: Material: ABS Battery: 1 * 1.5V Button Cell Battery (included) Package size: 146 * 99 * 29mm / 5.7 * 3.9 * 1.1in Package weight: 53g / 1.9ounce Packing list: 1 * Battery Tester 1 * Battery Tester