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Electric, Sensor, Light 4.5V (Optosensor)
Bricklink ID:x1161cx1
Weight:3.000 g
x1161cx1

Sets with this part (from Bricklink)
  Part color Black
 


 Set nameRelease yearQuantity
97009700 Technic Control Center19921
98659865 Optosensor19921
10901090 TECHNIC Control I19862
10921092 Technic Control II19862
13431343 Optosensors (4.5V) and Discs19862