It’s similar to the adapted ZCKD06S70 head, which is related to the complete switch XCKL106S70. The ZCKD06S70 head is a special cat whisker rod (diameter 1.2mm, length 300mm, 40mm diameter buckle) on the outside to detect aircraft during refuelling in the airport.

The ZCKD06SC6 head is a special rod (diameter 1.5mm, length 500mm 40mm diameter buckle) on the outside – please see the picture below.