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Brand: SICK
SICK LRS4581R-230001 LRS4000 2D Lidar Sensor
Description
LRS4581R-230001 is a SICK LRS4000 2D LiDAR sensor (part no. 1098855) that measures distances to surrounding objects along a rotating scan line. The catalogue summary lists: working range: 0.2 m … 300 m; enclosure rating: IP65, IP67; color: Gray (RAL 7042); integrated application: Field evaluation, output of measurement data; connection type: 3 x M12, stainless steel.
How the LRS4581R-230001 works and where it fits
Range depends on the target’s reflectivity. Angular resolution and scanning frequency set how many points land on a small object at a given distance.
These sensors are not safety devices unless the data sheet says so; they are used for navigation, volume and position measurement, anti-collision on cranes and vehicles, and for counting or classifying objects on conveyors. The scan plane is two-dimensional; to build a 3D picture the sensor must be moved or tilted, or a multi-layer type must be chosen.
Technical specifications
| Parameter | Specification |
|---|---|
| Type code | LRS4581R-230001 |
| Part number | 1098855 |
| Product family | LRS4000 |
| Application | Outdoor, Indoor |
| Light source | Infrared (886 nm, (max. output power 7.7 W; pulse duration 2.44 ns)) |
| Laser class | 1, Complies with 21 CFR 1040.10 and 1040.11 except for conformance with IEC 60825-1 Ed.3., as described in “Laser Notice No. 56” dated May 8, 2019 (IEC 60825-1:2014, EN 60825-1:2014) |
| Aperture angle: Horizontal | 360° |
| Scanning frequency | 12.5 Hz; 25 Hz |
| Angular resolution: Horizontal | 0.02° |
| Heating | Self-heating |
| Working range | 0.2 m … 300 m |
| Scanning range: At 10% remission factor | 120 m |
| Scanning range: At 90% remission factor | 250 m |
| Spot size | 2.6 mrad x 0.4 mrad (Single spot); 2.6 mrad x 0.4 mrad (+ angular resolution for HDDM+) |
| Amount of evaluated echoes | 3 |
| Connection type | 3 x M12, stainless steel |
| Supply voltage | 10 V DC … 30 V DC |
| Power consumption | Typ. 13 W, Max. 20 W |
| Output current | ≤ 0.25 A |
| Housing material | AlSi12 |
| Optical hood | Polycarbonate (PC) |
| Enclosure rating | IP65 (IEC 60529:1989+AMD1:1999+AMD2:2013); IP67 (IEC 60529:1989+AMD1:1999+AMD2:2013) |
| Electrical safety | IEC 61010-1:2010-06 |
| Weight | 1.7 kg |
| Dimensions (L x W x H) | 151.9 mm x 150 mm x 126.7 mm |
| Scan/frame rate | 37,500 measurement point/s … 225,000 measurement point/s |
| Response time | ≥ 40 ms |
| Detectable object shape | Almost any |
| Systematic error | ± 15 mm |
| Statistical error | < 10 mm |
| Declarations and certificates in the data sheet | EU declaration of conformity; UK declaration of conformity; ACMA declaration of conformity; China RoHS; cTUVus certificate; Information according to Art. 3 of Data Act (Regulation EU 2023/2854) |
Ordering LRS4581R-230001: type code, part number and fit
Derived from the listed angles: a 360 degree sector at 0.02 degree angular resolution corresponds to roughly 18001 measuring points per scan. This is a derived value for orientation.
Supply and signal data as listed: frequency: 12.5 Hz; 25 Hz; power draw: typ. 13 W, Max. 20 W; range: 120 m; connection: 3 x M12, stainless steel; current: ≤ 0.25 A; supply: 10 V DC … 30 V DC; resolution: 0.02°; response time: ≥ 40 ms.
Fitting and site conditions are covered by these entries: housing AlSi12; weight 1.7 kg; shock 50 g, 11 ms, 6 shocks per axis; 25 g, 6 ms, 1000 shocks per axis; vibration 10 Hz … 500 Hz, 5 g, 10 frequency cycles; operating temperature –30 °C … +50 °C; storage temperature –40 °C … +75 °C; light source infrared (886 nm, (max. output power 7.7 W; pulse duration 2.44 ns)); dimensions 151.9 mm x 150 mm x 126.7 mm.
Typical uses are vehicle and crane anti-collision, bulk-material volume and fill-level profiling, gate and dock monitoring and AGV navigation.
Check the data interface and the telegram format in the published documentation before committing to the PLC program.
Documents and quotation
Attached to this page: the SICK data sheet for LRS4581R-230001, part no. 1098855, as published by SICK. To request a quotation, submit the part number with quantity and destination in the RFQ form; Seven Star LLC is an independent supplier based in Muscat. Related SICK items are listed under Sensors & Transmitters. Check wiring, mounting and approvals against the data sheet before you order, since the data sheet is the governing document.
Datasheets & Documents
- Data Sheet SICK LRS4581R-230001 official data sheet (part no. 1098855) Download
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About brand
SICK is the German maker of industrial sensors: photoelectric and proximity sensors, safety laser scanners and light curtains, encoders, distance sensors, code readers and gas analysers. Erwin Sick, an optics engineer, founded it in Munich in 1946, and in 1952 it introduced its first marketable accident-prevention light curtain, which protected press operators by stopping the machine when a hand broke the light beam. The company moved to Waldkirch in the Black Forest in 1956 and is still headquartered there. It is a privately held company, and has been an Aktiengesellschaft (AG) since 1996.
SICK company profile
| Founded | 1946, Munich, Germany, by Erwin Sick (1909–1988) |
|---|---|
| Headquarters | Waldkirch, Baden-Württemberg, Germany (since 1956) |
| Ownership | Privately held; after the founder's death in 1988 his widow Gisela Sick became the main shareholder. Legal form SICK AG since 1996 |
| Size | More than 12,000 employees and group revenue of about EUR 2.3 billion (company figures for 2023) |
| First breakthrough | Accident-prevention light curtain for presses, shown in Hanover in 1952 |
| International growth | First foreign subsidiary in France in 1972, United States in 1976; today sales and service companies worldwide |
| Product families | Photoelectric, inductive, capacitive, magnetic and ultrasonic sensors; safety laser scanners, light curtains, safety controllers and relays; encoders and motor feedback systems; distance sensors and LiDAR; barcode and 2D code readers and machine vision; gas analysers, dust and flow measurement for process and emissions monitoring |
Milestones
- 1946: Erwin Sick receives a licence to run his engineering firm in Munich.
- 1952: The first marketable accident-prevention light curtain is presented in Hanover and goes into series production.
- 1956: The company moves to Waldkirch with 25 employees.
- 1972 and 1976: Subsidiaries are founded in France and the United States.
- 1996: SICK becomes an Aktiengesellschaft.
- Today: Sensors for factory and logistics automation, machine safety and process analysis, with a large share of revenue outside Germany.
Choosing a SICK sensor
For object detection, the sensing principle comes first. A retro-reflective sensor (WL series) sends light to a reflector and switches when an object breaks the beam; it is reliable over long distances and easy to align. A sensor with background suppression (WTB series) detects an object at a set distance and ignores what is behind it, which suits conveyors with shiny or dark backgrounds. A through-beam pair (WS/WE) gives the longest range and the highest reliability in dust. For transparent bottles and film, use a model built for transparent objects (for example WL12G-3B or WL150-P420). The digits in the code also matter: "P" usually means a PNP output and "N" NPN, and the last digits set the connector or cable. For machine guarding, a safety laser scanner such as nanoScan3 or microScan3 protects an area, while a safety controller such as Flexi Soft combines several safety devices.
Where SICK products are used
In Oman and the GCC, SICK sensors are used in packaging and bottling lines, food and beverage plants, logistics and airport baggage handling, cement and steel plants, ports and cranes, automated warehouses, and on machines built by European OEMs. SICK safety scanners guard robots and automated guided vehicles, and its encoders give position feedback on motors, hoists and conveyors.
SICK products we list
| Family | Examples |
|---|---|
| Photoelectric sensors | WL12-3P2431, WTB12-3P2431, GTB6-P4211, VL18-4P3240, WL12G-3B2531, WS/WE100, KT5W contrast, W26 IO-Link |
| Proximity, cylinder and ultrasonic sensors | IME12-08NPSZC0S, IME18-05BPSZC0S, MZT8, UM18 4-20 mA, UM30, UFN3 fork |
| Machine safety | nanoScan3, microScan3, S300 Professional, Flexi Soft FX3-CPU1, FX3-XTIO, ReLy OSSD |
| Encoders and motor feedback | DFS60B, AFM60 PROFINET, AFS60 SSI, ATM60 PROFIBUS, SRS50, EFS50 |
| Distance sensors and code readers | DT50, DL50, DT35, Lector632 |
Ordering SICK products: what we need
Send the type code and the 7-digit SICK part number from the label (for example WTB12-3P2431 together with its part number). For a replacement sensor, add the output (PNP or NPN), connection (M8, M12 or cable) and sensing distance. For encoders, add the interface (incremental, SSI, PROFIBUS, PROFINET), resolution and shaft type. For safety scanners, tell us the model and whether the existing configuration needs to be kept.
Facts checked against SICK's published company history and annual figures, October 2026.
Browse SICK products by category: Sensors & Transmitters.
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Frequently Asked Questions
What is the SICK LRS4581R-230001?
It is a SICK 2D LiDAR sensor (LRS4000), part no. 1098855. The catalogue summary reads: Working range: 0.2 m ... 300 m; Enclosure rating: IP65, IP67; Color: Gray (RAL 7042); Integrated application: Field evaluation, output of measurement data.
What supply does the LRS4581R-230001 need?
Supply voltage is 10 V DC ... 30 V DC. Check the output and interface rows in the table for the signal levels.
What protection rating and temperature range are given?
Enclosure rating: IP65 (IEC 60529:1989+AMD1:1999+AMD2:2013); IP67 (IEC 60529:1989+AMD1:1999+AMD2:2013). Ambient operating temperature: –30 °C ... +50 °C. Confirm both against the site before ordering.
Does the page include the data sheet?
Yes. The official SICK data sheet for part no. 1098855 is attached as a PDF and linked on this page; where it differs from the page text, the data sheet applies.
What should be confirmed before ordering the LRS4581R-230001?
Compare the full type code and part number 1098855 with the device being replaced, check supply, output or interface and mounting, and send the details through the RFQ form. Seven Star LLC is an independent supplier, not a SICK partner.
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