The Curriculum Kybernetik II – Sensorik model was first listed in the Lectron – MW era 1974-OCT-01 price list. This was the complete standalone version of the Ausbausystem 4 model.
The topic of this curriculum was sensors and what their biological equivalents were.
The sensors were also featured with the use of the vehicle introduced in the Kybernetik I curriculum.
I have never seen either of these models for sale on eBay since I began my acquisition of Lectron System models in 2012.