Good morning dear colleagues I am not sure if I am right here with my question. But it actually concerns in the broadest sense tool, but measuring tool. I want to permanently measure my resting current in Golf 4. The measuring instrument should have a Bluetooth connection. Of course, it is only clamped in the standing vehicle – the vehicle is not constantly needed. I have a long-standing problem. My resting current is imme r several weeks or at least a few days stable and however suddenly rises strongly without apparent reason. A voltage meter is already installed, which I query every day by Bluetooth. This morning e.g. the voltage was about 11.5 volts, yesterday morning at about 12.95 volts. So the high current is back. I go to the car and measure the rest current without interruption – however not a plier, but with a multimeter. Mostly the rest current is still correspondingly high ( Range 400 – 650 mA), sometimes it sinks either by unlocking the door or has dropped back to the normal level some time before. My question: Does any of you have experience with a measuring device that can be connected permanently to a standing vehicle and can be queried by Bluetooth or at least heard of it? This could narrow down the problem even better. Thank you in advance! Greetings from weather