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Laser distance sensors ASTECH

Laser distance measuring device LDS70A

Laser distance measuring deviceLDS70A

Laser distance measuring device

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Made in Germany


The laser distance sensors LDS70A are designed for measurements of moving targets. The sensor is characterized by a high output frequency of up to 40 kilohertz. Typically, the distance sensor is used to detect objects in industrial automation or for monitoring defined areas in transport and logistics applications. The compact laser distance sensor is offered as a ready-to-use device with industry standard IP67 proof housing. It provides precise measuring values up to 70 m without a reflector. With appropriate reflectors the LDS70A reaches objects at distances of up to 270 m.

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 mm
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)
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 ( more as 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.