Commercial equipment
Linear ACT-31B MegaCode 1-Channel Block Coded Key Ring Transmitter, Black (Replaces ACT-21A)
$73.27
Single-channel block coded key ring transmitter designed for access control systems. Features factory-preprogrammed MegaCode format with over 1,000,000 unique codes, virtually eliminating code duplication. The receiver learns each specific code, preventing unauthorized access through transmitter reprogramming.
Includes quick-disconnect key ring and lithium batteries with five-year service life. Built-in 10-second time-out feature prevents system shutdown from continuous transmission. Compatible with all MegaCode receivers and controllers.
Ideal for single-family, multi-tenant, and commercial applications. Suitable for everyday installations where reliable, secure access control is required.
Includes quick-disconnect key ring and lithium batteries with five-year service life. Built-in 10-second time-out feature prevents system shutdown from continuous transmission. Compatible with all MegaCode receivers and controllers.
Ideal for single-family, multi-tenant, and commercial applications. Suitable for everyday installations where reliable, secure access control is required.
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