heroal roller doors can be equipped with an optoelectronic security end strip (OSE) for the automatic recognition of obstacles. The optoelectronic security end strip includes a rubber profile at the end strip of the roller door, controlling a light beam. This light beam is interrupted whenever it hits an obstacle or the rubber profile is crushed. The optoelectronic security end strip stops the closing of the roller door, which then moves in reverse in order to release trapped things or people. Optoelectronic security end strips are available as a wired or wireless version. They meet the minimum protection levels for leading closing edges according to EU regulation type C. In addition, photoelectric barriers can be supplied in combination with the system heroal LSC , which meets safety standards type D. Photoelectric barriers are contact-free and include a sender and a receiver. They can be installed above the floor as a passage safety device, below the cover box as a safeguard for winding up and down, or above or below roller doors without a box system.