SG 15 light grid

The SG 15 light grid is comprised of transmitter and receiver strips. It is a TÜV certified item of electro-sensitive protective equipment for doors and gates and complies to the EN 12453 standard. As an e-device, it can be used as an unattended security device for motorised doors and gates.

Parallel light beams create a closely knit grid to detect heights of up to 1800 mm, 2160 mm and 2520 mm. Two beam patterns are available: C1 (45 mm spacing from end-to-end); and D1 (45 mm spacing to a height of 1035 mm, thereafter 180 mm). Fully automated signal tracking (AST) ensures the system is able to adapt to changing operational conditions. During gate closing, the intelligent SG 15 is able to differentiate whether dynamic beam disruptions are from the gate itself or from a foreign object. The transmitter and receiver have been tested to comply with the requirements of EN 12978.

Benefits of the SG 15 light grid:

  • Digital or OSE test options
  • Can be securely integrated directly into the gate's guide-rail system
  • Electro-sensitive protection device with TÜV certification (e-device) as an alternative to a contact strip
  • Minimal profile dimensions
  • IP 67 protection class
  • High ambient light immunity
  • High resolution (towbar detection) minimises gate damage
  • Energy savings from automatic gate closing
  • Ventilating function
  • Easy installation/upgrading 
  • Complies with EN 12978 requirements
  • Automatic signal-tracking (AST) enables easy setup
  • Varying profile dimensions


TÜV Nord inspected and certified according to DIN:

  • EN 12978:2003 + A1:2009 
  • EN ISO 13849-1:2008 
  • EN 61508:2010 Parts 1-7 
  • IEC 61000-6-2:2005 
  • EN 61000-6-3:2007 + A1:2011 
  • IEC 6100-6-3-1:2008


Sitron Sensor GmbH
Nickelstr. 4
30916 Isernhagen

Phone: +49 511 728 50-0
Fax: +49 511 728 50-33
E-Mail: office(at)

On-site point of contact

You can find your personal Sitron customer consultant here.