I have bought the 100A Version with the 100A shunt. I tested the device with a 55W (4.8A) load at 11.4Volt. Display indicates 93.3A which is definitly wrong and out of tolerance. Maybe there is something necessary to configure the device to get a better result, but there is no proper instructions comming with. Could not find infos in the internet.
The items have arrived in one week, very nice. Thanks.