← The LEGO Parts Guide › Electronics › Power Functions

2×4 WeDo 1.0 Motion Sensor (Part 43718)

2008-2009RETIRED

Custom LEGO part images © 2014-2026 Brick Architect LLC.

External Links

LEGO parts are described differently on other websites and may use different part numbers.

Bricklink:
43718 Electric Sensor, Motion - WeDo Robotics
Rebrickable:
43718 Sensor, Motion, We-Do
Brickset:
63523 FUNC. SENSOR DETECT 2x4x1
LDraw:
63523 Electric Power Functions IR Distance Sensor
 ALL YEARS
OVERALL RANK
7756
# PIECES
2(RANK: 7549)
# SETS
2(RANK: 7049)
# COLORS
1(RANK: 7549)

Ranking based on buying one copy of every LEGO set, counting the number of sets containing each part, then sorting by part and color.

Overall Rank is a weighted score combining the number of parts, sets, and colors produced.

Printable LEGO Brick Label

Requires a compatible Brother Label Printer — learn more at brickarchitect.com/labels.

2×4 Motion
Sensor
43718
.LBX

New Label! Not included in legacy LEGO Brick Labels collection.

2×4 Motion
Sensor
43718
.LBX

Small QR codes are hard to scan with some devices.

Date Added: 2026-09-26 02:09:06
Date Modified: 2026-09-26 02:13:16

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