Sick LMS511

Sick LMS111



ZoneSafe Standard

The Sick LMS511 laser scanner is a laser measurement sensor with medium range even under difficult climatic conditions thanks to its multi-echo technology. Its compact IP 67-rated enclosure with built-in heating make the LMS511 a sturdy laser sensor suitable for a great many environments with severe constraints. The principal advantages of the Sick LMS511 laser scanner are its low power consumption, fast signal processing, several inputs and outputs and, lastly, the possibility of synchronising several sensors together.

Multi-echo technology

The surroundings and the weather can cause interference. Fog, dust, rain and even simply a window are all sources of interference for a laser scanner. Thanks to its exclusive multi-echo technology, Sick’s laser scanners offer greater resistance to interference. They can receive multiple echoes of a laser emission, which enables them to distinguish the real measurement from interference, as shown in the diagram below.


VersionMid Range
Field of applicationOutdoor
Resolution powerStandard Resolution
Light sourceInfrared (905 nm)
Laser class1, IEC 60825-1 (2007-6), eye-safe
Aperture angle190°
Scanning frequency25 Hz / 35 Hz / 50 Hz / 75 Hz / 100 Hz
Angular resolution






Operating range0 m ... 80 m
Max. range with 10 % reflectivity40 m
Spot size11.9 mrad
Amount of evaluated echoes5
Fog correctionYes


Response time≥ 10 ms
Detectable object shapeAlmost any
Systematic error

± 25 mm (1 m ... 10 m)

± 35 mm (10 m ... 20 m)

± 50 mm (20 m ... 30 m) 1)

Statistical error

± 6 mm (1 m ... 10 m)

± 8 mm (10 m ... 20 m)

± 14 mm (20 m ... 30 m) 1)

Integrated applicationField evaluation
Number of field sets10 fields
Simultaneous evaluation cases10