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Linear Allstar 1-Button Miniature Transmitter (512 Selectable Codes)

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1-Channel Remote for Binary Coded Receivers

Like the standard size model, the extra compact Linear Allstar 1-Button Miniature Transmitter (512 Selectable Codes) operates an Allstar or MVP receiver (binary coded, 318MHz) to control one garage door or gate opener. The one-button, one-channel transmitter features a 9-position binary switch and 512 selectable codes. It also has a slot for a keyring.

  • Works with Allstar and MVP receivers
  • Controls one door/gate opener
  • Small size fits on keyring or in pocket
  • 512 selectable codes provide security


  • 1-Button Miniature Transmitter
  • 12V Battery

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 #: 9921MT
  • Power: 12-volt battery (included)
  • Codes: 512 (set by nine trinary dip switches)
  • RF Frequency: 318 MHz
  • Dimensions: 1.375(W) x 2.75(H) x 0.625(D) inches
  • Warranty: 1-Year Limited