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Sensing Edges

What is a sensing edge? A sensing edge is a touch sensitive switch that sends a signal to start, stop or reverse a motor, or sometimes even to ring a bell. They usually operate on 24 volts, making them useful for hundreds of applications.

Common uses for sensing edges include...

  • Slide gates
  • Swing gates
  • Barrier arms
  • Emergency switches
  • Rolling doors and grilles
  • Sectional doors
  • Scissor lifts
  • Counter shutters
  • Ovens and sterilizers (when used with a high-temperature edge, such as the ME103)
  • And many more!

 

Sensing edges come in two types, Non-Monitored and Monitored. Both monitored and non-monitored sensing edges are available in two styles, Slide-In and Direct Mount. Slide-in style, or extrusion with mounting channel, is the standard form of a sensing edge. It is designed to adapt to existing retainers, or can be used with optional mounting retainers. Each type is also available in 2-wire or 4-wire types.

If you are purchasing a Monitored sensing edge, you will need to choose an edge designator. Refer to the following chart to see where your needs lie. Most customers will want to utilize the T2, 10K Ohm Resistor.

Monitored Sensing Edge Designator
2 Wire Edge Designator Designator Description Operator Manufacturer Outlet Wire Color Code
T1 8.2K Ohm Resistor Typically European Use Green
T2 10K Ohm Resistor Cornell / US Gear Blue
    LiftMaster / Chamberlain  
    Linear  
    Manaras  
    Micanan  
    Raynor  
    VE Power Door  
    Cookson  
    Lawrence  
T3 Diode Capacitor Overhead Door (Only) Red
T4 Capacitor Linear (Transmitter) White
T5 6.8K Ohm Resistor Custom Applications Orange
T6 270K Ohm Resistor LiftMaster CPS Board Violet
4 Wire Edge Designator N/A LiftMaster None

 

Still have questions about gate sensing edges? Call 800-878-7829, email sales@gateopenersafety.com, or Shop Sensing Edges now!