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Linear DXT-21

$59.99 $38.50
(You save $21.49)
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Product Description

General Specifications for the: DXT-21 DXT-23 & DXT-25 models

Linear DXT-21 is a 2 Button 1 Channel Handheld transmitter

  • Dimensions: 4.2 in L x 1.6 in W x 0.8 in H (107 x 41 x 20 mm)
  • Power: Two 3V DL-2032 lithium batteries (supplied)
  • Current Consumption: 7 mA average while transmitting
  • Battery Life: Five years typical
  • Measured Range: 500 feet minimum in open air (four quadrant test)
  • Channels: 1, 4, or 8 channel depending upon model
  • Operating Frequency: 315 MHz


  • Unique "Extra" top button allows for additional channels.
  • High visibility LED.
  • Lithium batteries supplied.
  • UP to 700 foot range.
  • Pocket/belt clip supplied on each model.

Compatible Transmitters:

  • DXT-21 is a 1 Channel --Top or front
  • DXT-23 is a 4 Channel -- top, left, right, or left and right simultaneously (fail-safe mode)
  • DXT-25 is an 8 Channel -- All individual buttons on the front of the transmitter (4 channels), plus top and then any front button gives you (4 additional channels)


  • The Model DXT-21 2-Button, 1-Channel Handheld Transmitter is a battery powered portable transmitter designed for use with Linear's DX Format receivers. Each transmitter can be used in a limitless number of wireless remote control applications. Pressing a button on the transmitter sends a digitally coded wireless signal to its companion receiver.
  • The DXT-21 is a two-button, one-code transmitter. Pressing either the round button on the transmitter's front, or the small button on the transmitter's top will send the same signal.
  • The digital DX code format features over a million possible codes. The DX transmitters are precoded at the factory to unique codes, so no field coding is required. The multi-button transmitters send variations of their preset codes depending on which buttons are pressed. Transmitters can send a signal for up to 10 seconds per activation.
  • For versatility, any transmitter code can be programmed into any receiver channel. Receivers must be programmed to the transmitter code before system testing and operation.

help me program my linear dxt-21 garage door openerNeed help programming your linear DXT-21 remote?

View the programming instructions for the linear dxt-21 garage door opener remote.

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