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Safety sensor for revolving doors
Technology Laser
LZR-W400 sensor for power-operated windows


The laser sensor LZR®-P220 guarantees safety of people in the pinch zone of revolving doors. The high resolution laser curtain secures the hazardous closing edge on every type of revolving door, independent of floor and weather conditions at a max. mounting height of 5 m. The sensor complies with standards and European regulations.


High resolution

1 high resolution laser curtain with a digitally adjustable tilt angle (274 points every 66 ms, tilt angle of 0°, 2°, 4°, 6°).

Flexible detection field

Gradually adjustable width from 10 cm to 100 cm, maximum height of 5 m. Customisable detection field thanks to point-to-point teach-in (6 points every 10 cm at 2.5m mounting height).

Independent of floor

No reflectivity interferences as a result of time-of-flight technology.

Immunity filters

Optimized for outside applications through rain and snow filters
and an internal heating system.

Detection field
Table of specifications


LASER scanner, time-of-flight measurement


Detection mode



Max. detection range

5 m × 1 m (at max. 4 m according to DIN 18650)


Remission factor

> 5 %


Target size

DIN 18650 test body CA: 700 mm x 300 mm x 200 mm
DIN 18650 test body CB: Ø 50 mm (at max. 4 m)


Emission characteristics

IR LASER: Wavelength 905 nm; max. output pulse power 75 W; Class 1
Red visible LASER: Wavelength 650 nm; max. output CW power 3 mW; Class 3R


Supply voltage

10-35V DC @ sensor side


Power consumption

< 5 W


Peak current at power-on

2.2 A (max. 22 ms @ 24 V)


Response time

Typ. 80 ms - max. 150 ms


Max. switching voltage
Max. switching current

1 output NO or NC (galvanic isolated - polarity free)
35 V DC / 24V AC
80 mA (resistive)


Monitoring input
Max. contact voltage
Voltage treshold

1 optocoupler (galvanic isolated - polarity free)
30 V DC (over-voltage protected)
Log. H: >8 V DC; Log. L: <3 V DC



1 blue LED: power-on status
1 orange LED: error status
1 bi-coloured LED: detection/output status



125 mm (L) × 93 mm (D) × 70 mm (H) ( mounting bracket + 14 mm )



PC/ASA (colour : black)


Mounting angles on bracket

-45°, 0°, 45°


Rotation angles on bracket

-5° to +5° ( lockable )


Tilt angles on bracket

-3° to +3°


Protection degree



Temperature range

-30 °C to +60 °C if powered; -10°c to +60°C unpowered



0-95 % non-condensing



< 2 G (if powered)


Pollution on front screens

Max. 30%; homogenous





Norm conformity

This product conforms to all applicable European Union legislation. Please refer to the Declaration of Conformity for further information.


Specifications are subject to changes without prior notice – Measured in specific conditions.

  • LZR-W400 sensor for power-operated windows

    Safety sensor for revolving doors

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