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Linear Delta-3 Safety Edge Transmitter


Usually ships in 3-5 days.


WARNING: Cancer and Reproductive Harm –


Prevent Damage From Motorized Gate/Door

If a motorized gate, door, or barrier arm hits an object (such as your car) while moving, the Linear Delta-3 Safety Edge Transmitter can automatically stop or reverse motion in order to prevent damage or injury. The transmitter wires into a Safety Edge Sensor (sold separately), which mounts on the gate/door. When the sensor detects an object hitting it, the transmitter signals the receiver.

  • Activates one Delta-3 receiver
  • Used with a Safety Edge Sensor
  • Signals for stop or reverse motion
  • 256 selectable codes provide security
  • Compatible with all 310 MHz Delta-3 devices


  • Safety Edge Transmitter
  • (4) Mounting Screws

Note: Requires a Safety Edge Sensor and a Delta-3 receiver, sold separately.

Security, Access Control and More By Linear

For more than forty years, Linear LLC has been known as a worldwide provider of radio based transmitters and receivers for the traditional security market. Millions of Linear transmitters have been sold over the years. Linear security products are offered via a worldwide network of distribution. While Linear continues to be a leading supplier of devices for the security market, we have expanded our products to include focused product lines in the Access Control, Remote Control and Garage Door Operator markets.


  • Manufacturer Part #: DTG
  • Power: 9-volt battery
  • Codes: 256 (set by dip switches)
  • RF Frequency: 310 MHz
  • Dimensions: 4.28(W) x 2.875(H) x 2.25(D) inches
  • Warranty: 1-Year Limited