Motion Sensor

FALCON - Commercial and industrial motion sensor.

Download Falcon Brochure

EAGLE - Motion sensor for pedestrian doors

Download Eagle Brochure

IS40 - Commercial and Industrial motion and presence sensor

Download IS40 Brochure

MS21 - Industrial "wave to open" hands free sensor

Download MS21 Brochure


SDI offers a wide range of Transmitters and receivers from LIFTMASTER, LINEAR, FAAC and DOORKING.

Liftmaster Radio Controls

Linear Radio Controls


GSM Telephone Entry System - Wireless system uses SIM card technology to open your gate from anywhere in the world.

Download GSM TES Brochure

DOORKING 1812+/1812+A  -  Telephone entry systems hardwired to your home phone. 

Download 1812+ Brochure

Download 1812+A Brochure

AK-11 - Stand alone keypad is economical and durable.  

Download AK-11 Brochure

EMERGE - Online controller to communicate with your gate or door system over the internet

Download Emerge Brochure

PROXPAD - Proximity card reader with keypad.

Download Propad Brochure