9921MT: 1-Button Miniature Transmitter

The Nortek Security & Control Family of Brands

Installation Manual

One-button, one-channel, 12-Volt battery powered miniature transmitter with tab for key ring, 9-position binary switch, 512 selectable codes.


  • Compatible with Allstar and MVP receivers
  • Tab for key ring
  • Power: 12-volt battery
  • Codes: 512 (set by nine binary dip switches)
  • RF frequency: 318 MHz
  • Dimensions: 1.375″ W x 2.75″ H x 0.625″ D

Order number: 190-109393

WARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.gov

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