Introducing our Professional Battery State Detection Device – your go-to solution for testing a wide range of batteries, including button batteries, AA, AAA, and 9V types. Features: Efficient Battery Testing: Perfect for homes with multiple batteries, quickly identify and separate good batteries from old or depleted ones. Versatile Options: Choose between digital display or pointer type to suit your preference. Ease of Use: Simple operation design for user-friendly experience. Portable Design: Compact and lightweight for easy transport and storage. Wide Compatibility: Suitable for testing most household batteries, ensuring versatility. Specifications: Type: Digital display type, pointer type (optional) Color: Black Item Size: 110 x 59 x 25mm (4.3 x 2.3 x 1.0in) Item Weight: 45g (1.6 ounces) Package Size: 110 x 61 x 25mm (4.3 x 2.4 x 1.0in) Package Weight: 51g (1.8 ounces) Note: Battery not included in the package. Packing List: 1 x Battery Capacity Indicator