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    Linear Mini TRANS PROX & MegaCode Transmitters — Specifications

    September 08, 2026 2 min read

    Specification sheet for Linear's Mini TRANS PROX and MegaCode transmitters, key ring transmitters and integrated proximity tags compatible with all Linear MegaCode receivers.

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    Full text manual (for reference)

    Specification sheet for Linear's Mini TRANS PROX™ and MegaCode™ transmitters — key ring transmitters and integrated proximity tags compatible with all Linear MegaCode receivers and controllers.

    General Features

    • Compatible with all Linear MegaCode™ receivers and controllers
    • Block-coded to one of 15 facility codes
    • Quick and easy to enroll
    • Available in single-channel and 4-channel packages
    • Supplied with quick-disconnect key ring
    • Long-lasting lithium battery
    • Ruggedly built for everyday use

    Product Lineup

    Factory Block-Coded TRANS PROX™ (integrated transmitter & proximity tag)

    Model No.: ACT-31D / ACT-34D

    • Compatible with all Linear MegaCode™ receivers, controllers, and the AM-PR Reader
    • Same facility and ID codes for transmitter and proximity tag
    • 26-bit Wiegand format
    • Ideal for multi-tenant, residential, and commercial applications

    Available as single-button and 4-button MegaCode™ TRANS PROX™.

    Factory Block-Coded Transmitters

    Model No.: ACT-31B / ACT-34B

    • Compatible with all Linear MegaCode™ receivers and controllers
    • Factory block-coded facility and ID codes
    • Suitable for everyday installations
    • Ideal for single-family, multi-tenant, and commercial applications

    Available as single-button and 4-button MegaCode™ transmitters.

    Custom Block-Coded Transmitters

    Model No.: ACT-31C / ACT-34C

    • Compatible with all Linear MegaCode™ receivers and controllers
    • User-selected facility and ID codes
    • Suitable for expanding existing installations
    • Ideal for single-family, multi-tenant, and commercial applications

    Available as single-button and 4-button MegaCode™ transmitters.

    General Specifications

    Dimensions 1.25" W x 2.25" H x 0.5" D (38.1 x 57.15 x 12.7 mm)
    Power Two 3V 2016-style batteries
    Frequency 318 MHz
    Transmitter Format MegaCode™
    Wiegand Format 26-bit (TRANS PROX™ only)
    Number of Codes 1,000,000+ ID codes (15 facility codes)
    Accessories Quick-disconnect key ring

    Compatible Products

    • Commercial Telephone Entry Systems: AE2000Plus, AE1000Plus, AE-500
    • Residential Telephone Entry Systems: RE-2SS, RE-2N, RE-1N, RE-1SS
    • Wiegand Proximity Reader: AM-PR (TRANS PROX™ only)
    • Garage Door Operators: LSO50, LDO50, LDO33
    • Access Controllers: AM3Plus, AKR-1, AP-5
    • Gate Receivers: MGR, MGR-2, MDR-1, MDR-2, MDRG, SMDRG
    • Access Control Peripherals: WOR, AM-RRR, AM-RPR

    Manufacturer: Linear LLC · www.linearcorp.com · 1-800-421-1587