Light sensor

The pictured light sensor by manufacturer Sick, for door protection in trains and buses can be beneficially replaced by a compatible redesign.

The so far relatively complex adjustment of the mirror optics, which focuses the ray on the reflector, ceases with the new light sensors.
The new devices can be mounted “plug-and - play” on the designated places without any further adjustment.

The solid, black anodized aluminum cases are protected against vandalism, by dispensing with destructible front glass or lens, respectively, so malfunctions due to scratched, misted or dirty glasses or lenses are avoided.


The light sensors are constructed as unilaterally (mounting right or left) or mutually operating reflex-light sensors for prism reflectors. The double-acting devices have two independent 
monitoring routes that are linked to an output relay via an Or function. Highly reliable relays with  3x 106 switching cycles are incorporated.

The relay emits a clear “click sound” to enable a good acoustic verification of perfect function on-site. The devices are connected via a pluggable solid terminal 
strip in a significantly enlarged terminal compartment.

For operational maintenance of older original Sick-light sensors:

Replacement illuminants for Sick
When the original illuminant with low-voltage lamp may not be available anymore, a plug-and-play compatibly applicable illuminant with 2 infrared LEDs is available. Type: LM-ERS-LED.

Relay module for TL43
When the original module by Sick with 2 relays is not available anymore, the redesign of this module can be mounted via plug-and-play on the designated place in the light sensor by Sick. Type: VEW Relais TL43 RED

Sample available ex stock.

Data sheet