ITEM NAME:1.55V and 3V Button Cell Battery Checker Battery Tester Green B8H2 1.55V and 3V Button Cell Battery Checker Battery Tester Green B8H2 Suitable for:1.55V and 3V Button Cell Battery Color:Green Size:9.9 X5.4 x2.8cm Weight:About 47g Usage Description: When the pointer point at red district, indicate the battery is in a low power
