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The ACT-21A is a single-channel, key ring transmitter designed for use with Linear’s access control products. A unique 10-second time-out feature prevents the system from being shut down by a single transmitter transmitting continuously. Megacode transmitters are permanently coded at the factory with one of over 1,000,000 codes, proving a unique code that is programmed to the receiver by learning the transmitter’s unique digital code. The receiver is activated only from the memorized transmitters.
Compatible with all Linear access receivers and controllers and 318 MHz Megacode receivers
Includes:
Remote
Quick-disconnect key ring
Two- 1616 batteries
Dimensions: 1.25” W x 2.25” H x 0.48” D
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