SICK TiM881A 2D LiDAR sensor – DistanceGuard

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Specialist LiDAR training courses – booking now

The powerful combination of a SICK TiM series 2D LiDAR sensor and the DistanceGuard SensorApp makes the TiM881A a reliable and anonymous distance measurement solution.

With an impressive 25 metre range, angular resolution of 0.33° and HDMM+ technology on board, the LiDAR hardware base provides a robust, highly accurate, non-contact scanning capability that is unaffected by environmental conditions or object surfaces.

Detecting the number of, and/or distance between, pedestrians and objects within specified areas, the integrated DistanceGuard software issues a warning when minimum distances are breached, or maximum numbers reached.  This information is conveniently communicated via digital output or Ethernet interface, which also allows parameter adjustments to be made at short notice.

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  • Non-contact pedestrian and object counting
  • Distance measurement between persons or objects within a defined area
  • User-friendly interface enables settings and limit parameters to be defined and re-defined swiftly and simply
  • Data communication via digital output or Ethernet interface
  • Compact dimensions and design allow flexible and inconspicuous installation
  • Anonymised data processing means that no personal or identifiable data is recorded


  • Distance monitoring in public places, e.g shopping centres, entertainment venues
  • Collision detection
  • Monitoring visitor flow for commercial analysis eg shopper behaviour, or for dynamic operational needs
  • Pedestrian counting – ensuring that areas with fixed capacities are not over-filled eg sports stadia



Measurement principleHDDM+
Light sourceInfrared (850 nm)
Laser class1 (IEC 60825-1:2014, EN 60825-1:2014)
Aperature angle




Scanning frequency15 Hz
Angular resolution0.33°
Working range0.05 m – 25 m
Scanning range

10% reflectivity


8 m

Mechanics and electronics

Connection type1 x Ethernet connection, 4-pin M12 female connector

1 x connection power / synchronisation output 5-pin, M12 male connector

1 x Micro USB female connector, type B

Supply voltage9 V DC – 28 V DC
Power consumptionTyp. 4 W, 16 W with 4 max. loaded digital outputs
Housing colour Grey (RAL 7032)
Enclosure ratingIP67 – applies only when the plastic cover of the aux interface is closed (IEC 60529:1989+AMD1:1999+AMD2:2013)
Protection classIII (IEC 61140:2016-1)
Weight250 g, without connecting cables
Dimensions6 x 6 x 8.6 cm


Response time1 x  scan, typ. 67 ms

2 x scans, ≤ 134 ms

Systematic error± 60 mm (technical data such as measurement errors and sensing range can only be guaranteed up to a sensing range of 10 m)
Statistical error< 20 mm (technical data such as measurement errors and sensing range can only be guaranteed up to a sensing range of 10 m)
Integrated applicationDistanceGuard
Detectable object shapeAlmost any


EthernetTCP / IP



Micro USB

Digital inputs / outputs4 (reserved) / 4 (PNP)
Delay time67 ms – 30,000 ms
Dwell time67 ms – 10,000 ms
Optical indicators2 x LEDs
Operator interfacesSOPAS ET (diagnostics)

Ambient data

Object reflectivity4% – 1000% (reflector)
Electromagnetic compatibility

Emitted radiation

Electromagnetic immunity


Residential area (IEC 61000-6-3:2006+AMD1:2010)

Industrial environment (EN 61000-6-2:2005)

Vibration resistance

Sine resonance scan

Sine test

Noise test


10 Hz – 1,000 Hz (IEC 60068-2-6:2007)

10 Hz – 500 Hz, 5 g, 20 frequency cycles (IEC 60068-2-6:2007)

10 Hz – 250 Hz, 4.42 g RMS, 5 h (IEC 60068-2-64:2008)

Shock resistance 50 g, 11 ms, ± 3 single shocks / axis (IEC 60068-2-27:2008)

25 g, 6 ms, ± 1,000 continuous shocks / axis (IEC 60068-2-27:2008)

50 g, 3 ms, ± 5,000 continuous shocks / axis (IEC 60068-2-27:2008)

Ambient operating temperature -25 °C – +50 °C
Storage temperature-40 °C – +75 °C
Temperature change-25 °C – +50 °C, 10 cycles (EN 60068-2-14:2009)
Damp heat25 °C – 55 °C  6 cycles (EN 60068-2-30:2005)
Permissable relative humidity≤ 95%, non-condensing (EN 60068-2-30:2005)
Ambient light immunity80,000 lx

Additional information

Weight0.25 kg
Dimensions6cm x 6cm x 8.6cm

Data sheet and downloads

SICK TiM881A DistanceGuard 2D LiDAR sensor data sheet [PDF]

SICK DistanceGuard LiDAR family overview [PDF]



Finance and Shipping

Restrictions on customers

Please note that due to the high average transaction costs, we must adhere to Anti-money laundering legislation.  For new customers, this comes into effect when the transaction value is more than £8,800 (or equivalent in USD or EUR).

Please note that some products are restricted so we typically do a brief check on location and customer information before accepting self-service orders.

Online ordering (self service)

On orders up to £8,800 (or equivalent in USD or EUR), we offer online ordering with payment by all major credit cards. Payments can be made in GBP only.

Payment options for transactions over £8,800

Please contact us to complete our ‘Know Your Customer’ form for payments in advance (by BACS or Card) above this amount, or apply for a full ‘Credit Account’ for up to 30 days credit, on account.  Payments can be made in GBP, EUR or USD.


Shipping by default is by FedEx and typically takes from one to five working days worldwide.  All packages are fully insured from us to you. 

Our incoterms are DDP (for UK customers) and DAP (for international customers, including EU).  Other incoterms may be available on request in special circumstances.

Goods can also be collected from our logistics centre. 

Loan finance

Level Five Supplies is pleased to offer finance as a payment option, iur appointed partners can work with you to make equipment purchase more straightforward.

There are many reasons to consider using finance:

  1. Improves Cash Flow: When you finance your equipment, your cash isn’t tied up in the equipment. Instead, it’s free for other investments that will grow your business, produce income, and ensure the equipment you acquire earns profits over its lifetime.
  2. Preserves Other Lines of Credit: Tomorrow can bring many opportunities. Financing equipment means you’ll have the credit available (either from the bank or other sources) to take advantage of future opportunities.
  3. Hedges against inflation: Your monthly payment remains the same over the term of the lease or loan. Money paid later in the term usually have less purchasing power than those paid at the beginning of the term…so you pay for today’s equipment needs with tomorrow’s lower-value currency.
  4. Provides 100% financing: Even “soft costs” such as training, shipping, installation, and maintenance agreements can usually be included. So you can rest easy knowing that these associated costs won’t disrupt your cash flow.
  5. Simplifies equipment changes: Hiring additional workforce? Increasing efficiency? Additional equipment can easily be added to your existing loan or lease. Or, if you’re trying to stay ahead of the competition by staying ahead of technologies, the equity in your financed equipment can be applied toward the loan or lease of new equipment. These options solve the problems of obsolescence – and make your job easier.
  6. Eliminates hidden charges: You have no compensating balances, no closing costs, and no blanket liens or other restrictive covenants that banks use to increase customers’ cost. What you see is what you get.
  7. Offers excellent rates: Our finance partner rates are highly competitive.
  8. Saves on taxes: Depending on the type of finance agreement you select, as much as 100% of your payments may be tax deductible.
  9. Offers many payment programs: Our finance partners work for you, not us. You choose the type of loan or lease that best fits your needs, and you select the length of the loan or lease term.

The finance agreement is between you and the lender, and we don’t take commission or referral fees – but we’ve done the preparatory work of allocating a broker for the US, and another for Europe, explaining the technology, validating supplier products and explaining how the technology will be used so your application process is simplified and focused entirely on the financials.

The initial part of the process usually takes less than an hour and means that you can spread the cost of a higher value purchase of equipment like this over several months or even years, allowing you to better plan your project or department budgets, but also means you can get what you need over the coming years, not just what you can afford today.

Contact our Sales team to discuss your needs further.  

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