Extreme fast and compact distance sensor

The LDS70A laser distance sensor is intended for general distance measurements which require extremely fast data acquisition.
It provides up to 40,000 centimeter-precise measuring values per second – up to 70 m without a reflector. With appropriate reflectors the LDS30A reaches objects at distances of up to 270 m.


The sensor has been optimized for easy system integration and has a shock-proof and impact-resistant IP 67 housing. Thus, it is most suitable for applications that impose high impact on the sensor, such as harsh industrial environments.
Due to the invisible and eye safe laser (905 nm) the LDS70A can also be used in public areas.


  • Distance measurement
  • Fast object detection
  • Use as proximity switch
  • 2D and 3D scanning applications
  • Collision avoidance for drones
  • Altimeter


  • Compact design, low weight
  • Extremely high measuring rate
  • Long measuring range
  • Eye safe operation
  • Housing in IP 67, shock-proof and impact-resistant
  • Industrial interfaces
  • Digital and analog outputs
  • Easy system integration

Technical Data

Measuring range1 0.2 m ... 70 m for target reflectance of ≥ 10 %
Up to 250 m for high target reflectance or use of reflectors2
Measuring accuracy 3 ±60 mm
Reproducibility ±25 mmm
Resolution 1 Mm
Maximum measuring rate

40 kHz using binary data output

Laser wavelength

905 nm (invisible, infrared)

Laser divergence 2 mrad × 0.4 mrad
Laser protection class

Laser class 1, EN 60825-1:2014

Serial interfaces RS232 or RS422, selectable,
Max. baud rate 921600, ASCII or binary encoded
9600 … 921600 Baud, 8N1, ASCII
Digital switching output

2x "high side” switches, max. load 0.2 A

Analog output

Programmable distance range, 4 ... 20 mA

Trigger 1x Input/Output, programmable delay
Connector Standard M12, male connector,
12-pin,(e.g. Binder 713 series)
Measuring modes Single measurement, continuous measurement,
programmable auto start
Power supply

10 VDC ... 30 VDC

Power consumption (max.) <=3 W (without heating)
<=8 W (with heating at VDC = 24 V
Operating temperature -20 °C ... +60 °C (without heating)
-40 °C ... +60 °C (with heating enabled)
Storage temperature -40 °C ... +70 °C
Humidity 10 % ... 90 %, not condensing
Integrated heating Yes, automatically controlled
Protection class IP 67
EMC EN 61326-1
Shock / Vibration DIN ISO 9022-3
Size (L×W×H, incl. connector) 98 mm × 46 mm × 25 mm
Weight 140 g
MTTF > 5 years ( >44.000 hours)

Remarks on the technical data

1 e.g. Scotchlite Cube 3000x
2 Dependent on target reflectance, influence of extraneous light and atmospheric conditions
3 Accuracy can be ± 100 mm for close-up ranges up to 1 m.


Mr. Daniel Strandt

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CAD Models

Images list

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