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The Hokuyo UTM-30LX is a scanning laser range finder with an extended sensing range out to 30 meters. Interface to the sensor is through USB 2.0 with an additional synchronous data line to indicate a full sweep. Scanning rate is 25 milliseconds across a 270° range. A 12 V power source is required.

Hokuyo UTM-30LX is the industry standard for long range 2-d laser range finders. Phenomenal build quality and performance.

This type of sensor has been successfully used on many autonomous ground vehicles and unmanned aerial vehicles, SLAM self-mapping applications, etc.

MIT students have used this type of sensor to build self-navigating autonomous quadcopters: http://projects.csail.mit.edu/video/research/robo/ICRA_2010.mov

 You can see the type of data it outputs here.

Detailed specifications, sample code and firmware updates are available from the manufacturer.

ROS drivers are available.

Data interface is via USB.

Hokuyo UTM-30LX-EW Specifications

Specification of Product: 
Light Source

Laser Semiconductor λ = 905nm Laser Class 1

UTM-30LX Supply Voltage

 12VDC ± 10%

Supply Current

 Max: 1A, Normal : 0.7A

Power Consumption

 Less than 8W


Detection Range


Detection Object

Guaranteed Range: 0.1 ~ 30m (White Kent Sheet) * ²

Maximum Range : 0.1 ~ 60m

Minimum detectable width at 10m : 130mm (Vary with distance)

UTM-30LX Accuracy

0.1 – 10m : ±30mm, 10 – 30m : ±50mm (White Kent Sheet) * ²

Under 3000lx : White Kent Sheet: ±30mm*¹ (0.1m to 10m)

Under 100000lx : White Kent Sheet: ±50mm*¹ (0.1m to 10m)


Measurement Resolution


Repeated Accuracy


0.1 – 10m : σ <10mm, 10 – 30m : σ <30mm (White Kent Sheet) * ²

Under 3000lx : σ = 10mm*¹ (White Kent Sheet up to 10m)

Under 100000lx : σ = 30mm*¹ (White Kent Sheet up to 10m)


Scan Angle



Angular Resolution

 0.25º (360°/1440

Scan Speed

25msMotor speed : 2400rpm


Ethernet 100BASE-TX(Auto-negotiation)


Synchronous Output 1- Point

LED Display

Green: Power supply.

Red: Normal Operation (Continuous), Malfunction (Blink)

Ambient Condition

(Temperature, Humidity)

-10ºC ~ +50ºC

Less than 85%RH (Without Dew, Frost)

Storage Temperature


Environmental Effect

Measured distance will be shorter than the actual distance under rain, snow and direct


Vibration Resistance

10 ~ 55Hz Double amplitude 1.5mm in each X, Y, Z axis for 2hrs.

55 ~ 200Hz 98m/s2 sweep of 2min in each X, Y, Z axis for 1hrs.

Impact Resistance

196m/s2 In each X, Y, Z axis 10 times.

Protective Structure

Optics: IP67 (Except Ethernet connector )

Insulation Resistance

10MΩ DC500V Megger


210g (Without cable)




External Dimension


62mm×62mm×87.5mm 


*¹ Under Standard Test Condition (Accuracy can not be guaranteed under direct sunlight.)

*² Indoor environment with less than 1000Lx.

Please perform necessary tests with the actual device in the working environment.

Use data filtering techniques to reduce the effect of water droplets when detecting objects under the rain.


Quality Reference Value

Viberation resistance during operation

10~150Hz 19.6m/s2 Sweep of 2min in each X,Y,Z axis for 30min

Impact resistance during operation

49m/s2 X, Y,Z axis 10 times

Angular Speed

2π/s (1Hz)

Angular Acceleration

π/2rad/ s2


5 Years (Varies with operating conditions)

Noise Level

Less than 25dB at 300 mm


FDA Approval (21 CFR part 1040.10 and 1040.11)

interface: Robot Cable 4 Pin

Color Funtion
Brown +12V
Blue 0V
Green Synchronous Output

Ethernet Cable

RJ-45 plug is attached to the cable (Length: 300mm)


Hokuyo UTM-30LX Usage

Hokuyo UTM-30LX a scanning laserrange finder from Hokuyo is used for mobile robot obstacle detection by scanning the area to the range of 30 meters.  It has a 270 degrees of scanning range and is suitable for fast moving robots.  This laser scanner can be used for outdoor environments.

Here you can find extensive details about the API and command line tools and commands to interface and communicate with UTM-30LX.

National Instruments have provided a plug and play driver which can be downloaded from here.

Researchers working with VTK (visualization toolkit) can directly acquire data in VTK format a wraper for Hokuyo interface can be downloaded from here.

Hokuyo has lanched a newer version of this laser scanner.  Following are the main differences:

  • Price (UTM-30LX-EW is for USD $5200 and UTM-30LX is for USD $4800).  The price may slightly vary due to exchange rates.
  • Eternet (Hokuyo UTM-30LX-EW) instead USB (Hokuyo UTM-30LX)
  • Multi-echo functionality which works great for outdoor atmopshers

There are many vendors which offer this device we offer the lowes price.  We also have a price match policy if you find a price lower than ours.  Let us know and we can instantly send you a quote.  We also have quanity discounts so call us or e-mail us and let us know about your requirements.

Powering up Hokuyo UTM-30LX or UTM-30LX-EW and viewing the Laser Scan

Hokuyo UTM-30LX and Hokuyo UTM-30LX-EW are used in many robotic and mapping and other Laser Scanning applications including area monitoring. 

One of the most interesting application is the mapping application used by robots and also for Geomatics.  When considering mapping for robotic projects we have to consider the localization as well and here the term callled SLAM or simultaneous Location and Mapping comes in. 

Here I would try to explain how the UTM-30LX can be used for SLAM.   I am going to use the Hector_SLAM approach.  So lets get started. 

The very first thing is to have any of the Hokuyo series LiDARs.  We will consider the UTM-30LX.  This particular LiDAR takes 12v with plus minus 10% and 1A.  The easieset way to power it up is by uising a computer power supply which can be bought for about $40.  The yellow wire gives out the 12v and the black is Ground or 0V.  So we will connect the brown or 12v from the UTM to 12v Yellow of the power supply and the blue from the lidar connecot to the black of the power supply connector. 


You can attach the two female connecotrs using the male-male premium wire.  Before turning on the power please do confirm the out voltage from the power supply that it is definitly 12v.  You can do that with a multimeter.  When you connect the power supply with the 110v you will note that nothing hapens as the power supply has a on off switch mehcanism.  The easiest way to on th epower supply is to short the green and the black cables in the 24 pin molex connector coming out of the power supply.

Once the hopy is powered up there are several way to view the data.  FOr the Hector Slam we used the ROS hector Slam package.  a nice tutorial can be viewed here:


Once done with all the steps you should be able to view the UTM-30L data on your screen using ROS, and Hector SLAM package.








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