1343-1
Optosensors (4.5V) and Discs
Building instructions
The building instructions are on the official LEGO website. We do not host any instructions ourselves; the link below takes you to the official page.
View building instructions on LEGO.com (opens an external website)This set on Rebrickable (opens an external website)
Parts list – 1343-1 Optosensors (4.5V) and Discs
2 lines, 4 pieces
| Image | Part | Name | Colour | Quantity | Note |
|---|---|---|---|---|---|
 | upn0178 | Sensor, Light, 4.5VElectronics | Black | 2× | |
![Part 2723pr0005 Technic Disc 3 x 3 with 4 Black Sections on One Side and 8 on Reverse Print [Speed Sensor] in White](https://cdn.rebrickable.com/media/parts/photos/15/2723pr01-15-c6fd6939-2037-4995-9a3f-f6d69c867391.jpg) | 2723pr0005 | Technic Disc 3 x 3 with 4 Black Sections on One Side and 8 on Reverse Print [Speed Sensor]Technic Special | White | 2× |