The Linear garage door opener keypad is a redesign of the old Linear model MDTK keypad. The Linear garage door keypad can program to an unlimited number of Linear garage door openers. Linear: ACT-21A (ACP00607), ACT-22A (ACP00606A), MCT-1 (DNT00083), MCT-11 (DNT00090), MCT-2 (DNT00084), MCT-3 (DNT00089), MDR (DNR00071), MDR-2 (DNR00072), MDR/U (DNR00100), MDT-1A (DNT00052A), MDT-2A (DNT00053A), MDT-4A (DNT00054A), MDTK (DNT00058), MTR1, MTR3.
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