Feature: 1. Battery Checker: This battery meter can measure 1.5V and 9V battery power to avoid wasting batteries and extend battery life. 2. LCD Screen: The clear LCD screen is easy to read, with green indicating good, yellow indicating low, and red indicating poor. 3. Environmentally Friendly: This battery tester is powered by the test battery, no other batteries are needed, economical and environmental friendly. 4. Compact and Portable: The battery tester is compact and portable, suitable for carrying around and convenient for battery measurement anytime and anywhere. 5. ABS Material: The casing of the digital battery tester is made of ABS, which has good dustproof effect and long service life. Specification: Item Type: Digital Battery Tester Material: ABS Use: Applicable to AA, AAA, C, D, 9V batteries, 6F22 and 1.55V button batteries (not applicable to 3V) and other batteries, not applicable to rechargeable batteries.. Package List: 1 x Digital Battery Tester