we are offering battery cell meter. key features: the cell tester is housed in black phenolic moulded case of 65mm diameter. a terminal spike is fitted on the top of the instrument which can be directly connected to one end of a battery terminal. at the other end a flexible lead passes through a bakelite handle terminated in a 150mm long insulated prod. this centre zero instruments help to read the voltage irrespective of polarity. ranges: 3-0-3v,