TELWIN Digital Tester which allows not only the control of the charge status of a battery, but it also verifies the correct functioning of the charging system (alternator) of the vehicle's battery. Extremely compact, handy and easy-to-use, it enables to operate with batteries (WET, GEL, AGM, PbCa) at 6/12V without disconnecting them from the vehicle, making the testing operations easy and quick to perform. The easy digital display and the led system provide the instant and precise viewing of the required information, allowing for an efficient control of the batteries and the starting and charging systems.