2×4 Motion Sensor (Part 20844)

Custom LEGO part image © 2025 Tom Alphin / Brick Architect.
Still available in #21323 Grand Piano.
External Links
LEGO parts are described differently on other websites and may use different part numbers.
LEGO Pick a Brick:
20844 LPF2 SENSOR DETECT 2X4X1
Bricklink:
20844 Electric Sensor, Motion - WeDo 2.0
Rebrickable:
20844 Sensor, Motion, We-Do 2.0 2 x 4 x 1
Brickset:
20844 LPF2 SENSOR DETECT 2X4X1
LDraw:
20844 Electric Power Functions 2.0 IR Distance Sensor
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.
Included in legacy LEGO Brick Labels collection.
Small QR codes are hard to scan with some devices.
Date Added: 2024-02-21 12:00:00
Date Modified: 2025-09-14 20:02:41