Checking for Carbon-Zinc, Alkaline and Button Cell Batteries.
Testing Range: C, AA, AAA, D, N, 9V (6F22) batteries and 1.55V button cell.
Built of ABS plastic and stainless steel and powered by a single 1.55V battery.
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.
Usage: Fix a battery in the appropriate position and the tester will begin. The two measuring points of 9V battery are on the bottom of the unit.