A high current draw in battery-operated devices leads to an undesirably rapid discharge of the 9V battery. Checking the power consumption without this measuring adapter has been time-consuming and complicated. The VOLTCRAFT MB-703 measuring adapter connects to the battery terminal on the front and to the 9V battery on the back. With the help of the 4 mm banana plugs, the measuring adapter is compatible with all common digital multimeters. This adapter allows for measuring both the operating current and the battery voltage under load. Special feature: straight.