ALLNET Brick'R'knowledge measuring adapter 3 x 2mm socket
2mm sockets are connected to the Herma plugs for various measuring tasks. It is also particularly suitable in conjunction with the Arduino Coodigset to route signals out of the system.
Black socket is permanently connected to system GND. The yellow and red sockets are each connected to both contacts of the Herma plug on the opposite side. Only one socket with one contact is connected to the middle Herma plug. Imax 6A