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Linear MegaCode Block Coded Key Ring Transmitter & Proximity Tag, 4-Channel


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WARNING: Cancer and Reproductive Harm –


Block Coded 4-Channel MegaCode Trans Prox Transmitter & Proximity Tag

The Linear 4-Channel Block Coded Key Ring TRANS PROX Transmitter & Proximity Tag (ACT-34D) is designed for use with Linear’s access control products. The ACT-34D is a four-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 TRANS PROX Transmitter & Proximity Tag also contains a 26-bit Wiegand proximity tag programmed to the same block code as the transmitter. The tag is compatible with the AM-DPR Dual Proximity Reader. Waving the transmitter near the reader will request access from the system.

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.

Radio Controls For Every Requirement From Linear

From garage door openers to gate operators, from loading dock doors to access control systems, from everyday entry to high security, Linear makes radio controls to cover the industry’s diverse range of applications. Single and multi-channel transmitters and receivers can be mixed and matched within product families to address just about any user need.


  • Compatible with all Linear access receivers and controllers
  • Built-in 26-bit Wiegand proximity tag
  • Eliminates need for separate proximity card or tags and transmitter
  • Supplied with quick-disconnect key ring
  • Factory programmed MegaCode format supports over 1,000,000 codes
  • Same facility and ID codes for transmitter and proximity tag
  • Two type 2016 lithium batteries supplied
  • RF Frequency: 318 MHz
  • 1.25" W x 2.25" H x 0.48" D
  • Order number: ACP00955