Linear ACT-21B Coded Key Ring Transmitter







1-Channel Block Coded Key Ring Transmitter


The Model ACT-21B 1-Channel Block Coded Key Ring Transmitter is designed for use with Linear’s access control products. The Model ACT-21B 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.


Block coded transmitters are factory programmed to a sequential series of transmitter ID codes. When used with a Linear access controller, transmitters can be locally or remotely programmed into memory by entering the first and last codes of the block into the system. Facility codes can be selected to further customize the system.


Features

  • Compatible with all Linear access receivers and controllers
  • Supplied with quick-disconnect key ring
  • Sold Individually
  • Power: Two 1616 batteries
  • Codes: Custom block coded in MegaCode format
  • RF frequency: 318 MHz
  • Dimensions: 1.25" W x 2.25" H x .48" D


Models compatible with the ACT-21B

Model

Description

AE1000Plus

Commercial Telephone Entry System with Access Control - Four Doors

AE2000Plus

Commercial Telephone Entry System with Access Control - Four Doors, Large Screen

AKR-1

Exterior Digital Keypad with Radio Receiver

AM-RPR

Remote Proximity Receiver

AM-RRR

Remote Radio Receiver

AM3Plus

4-Portal Access Controller

MDR

1-Channel Receiver

MDR-2

2-Channel Receiver

MDRG

1-Channel Gate Receiver

SMDRG

1-Channel Gate Receiver

WOR

Wiegand Output Receiver

 


  • Model: Linear ACT21B
  • 4 Units in Stock
  • Manufactured by: Linear Nortek

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$36.95

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