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Electric, Sensor, Touch with Non-Removable Lead
Bricklink ID:2974c01
Weight:12.000 g
2974c01

Sets with this part (from Bricklink)
  Part color Yellow
 


 Set nameRelease yearQuantity
98889888 9-Volt Touch Sensor (2 x 4 type with built-in wire)20021
97019701 Control Lab Building Set19951