Crystal Presence

With the most reliable active infrared sensor on the market : up to 10 minutes of presence

  • A sturdy, high-performance sensor offering a presence curtain for different types of automatic doors (sliding, prismatic, etc).
  • Safe opening : perfect monitoring of lateral fixed leaves of sliding doors (flat or prismatic).
  • Safe closure : optimum monitoring of the area of passage (up to 2 metres wide)

Microhead One & Two

Increased Safety

  • One card for wide safety field (4 beams in row = 400mm*)
  • Low dead zone (typ. 15cm*)

Intuitive and quick installation

  • Sensor configuration in one push (Plug – Push – Go)
  • DIP-switch for adjustments in specific cases
  • Only one cable to the door controller to secure both sides of a swing door (no other accessories required)

Modular design

  • Extendible safety field through easy connection of additional cards
  • Each card can be used as a MASTER or add-on card (SLAVE) with automatic function recognition
  • Modular design (separate components are available)


  • Adapts itself to all environments
  • Mounting height up to 3.5m
  • Monitoring according to EN13849-1/EN954-1


Active infrared presence sensing system

High performance safety sensor placed on the top of the door leaf, for perfect safety for individuals and goods, at any time, whatever the door's position.


Infrared barrier composed by an emitter and a receiver in cylindrical heads

The small-sized infrared beams that can be discreetly fitted into the profiles of single or double doors and which can also be used for specific applications (railways, security entrances, etc.).

Case Study

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Continental Installations

DSI are our preferred door automation supplier, They have always been prompt, reliable and user friendly.

Chris North Continental Installations