The GT-31 is a three-button miniature transmitter that sends a unique code for each button. Typically, one button is used to operate a community access gate, another button can activate the individual's garage door, and a third button can control an additional door or other device. Manufactured by Linear Corporation.
Features:
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Genie generation one intellicode compatiable transmitter by Linear Corp.
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Works on 1996 or newer intellicode models
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Three buttons and three channels to operate three independent gate, garage, and/or other access operations
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Test / operate LED
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Black case color
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Molded-in hole to accept keychain or keyring
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Anti-code-theft, rolling code technology
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Quick-disconnect keyring supplied
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Frequency: 390 MHz
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Codes: randomly selected from over 4 billion codes with each button press
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Dimensions: 2.5 x 1.5 x .625 inches