HIGH COMPATIBILITY Testing Range: C, AA, AAA, D, N, 9V (6F22) and 1.55V button battery；No battery power required for operation, working Temperature: 0°C ~ 40°C.
Can be used to test D, C, AA, AAA, N, 1.5 V button batteries and 9V batteries.Suitable for carbon, zinc, alkaline and rechargeable batteries.
Easy to use：Easy-to-use analyzer shows what you need to know about your battery’s health, it will accurately shows whether the battery is in poor, weak, or good condition of voltage.all in size makes it ideal for the gadget bag, toolbox, or home utility drawer
LCD Screen with instant readouts. The battery's reading value will be shown on the LCD display in three areas: red zone-poor, yellow zone-weak and blue zone-good.
Built of durable plastic and stainless steel. Quick Results no power needed.