Linear ACT-21A 318MHz MegaCode 1-Channel Key Ring Transmitter

Linear ACT-21A 318MHz MegaCode 1-Channel Key Ring Transmitter

Images for Linear ACT-21A 318MHz MegaCode 1-Channel Key Ring Transmitter


Linear ACT-21A 318MHz MegaCode 1-Channel Key Ring Transmitter Short Description


The Model ACT-21A 1-Channel Key Ring Transmitter is designed for use with Linear's access control products. The Model ACT-21A is a single-channel device supplied with a quick-disconnect key ring. Also included are lithium batteries with a five-year service life. A unique 10-second time-out feature prevents the system from being shut down by a single transmitter transmitting continuously. The transmitter is MegaCode format, which means each transmitter is factory preprogrammed with one of over 1,000,000 codes, virtually eliminating the possibility of code duplication. Because the receiver "learns" each specific code, no unauthorized person can gain access to the system by reprogramming a transmitter.

Linear ACT-21A 318MHz MegaCode 1-Channel Key Ring Transmitter Key Features


  • Compatible with 318MHz Linear access receivers and controllers
  • Factory programmed MegaCode format supports over 1,000,000 codes
  • Two type 1616 lithium batteries supplied
  • 1.25" W x 2.25" H x 0.48" D




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Posted by Janice Foy, Published at 5:46 PM and have