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The Linear ACT-31B 1-channel keychain transmitter has 10 sec time-out feature that resist the system from being turn off by a single transmitter. It features MegaCode format and eliminates code duplication. It prevents unauthorized access to the system as the receiver learns each specific code. This transmitter is perfect for garage door openers and gate operators. It has 1 button remote control that is useful for one door or gate. This block coded transmitter is factory programmed for a sequential series of transmitter ID codes. It measures 2.25" x 1.25" x 0.48" and has a frequency of 318 MHz for efficient operation.
|Security System Accessory Type||Keychain Transmitter|
|Height in Inches||2|
|Width in Inches||2.2|
|Depth in Inches||3.6|