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The DoorKing 1837-010 Main Control Board is a vital replacement part for DoorKing 1837 series telephone entry systems
Perfect for residential estates
built-in entrapment protection
corrosion resistance
Input Voltage: 24 VDC
LiftMaster K75-50090 (Elite Q013) Idler Sprocket Assembly vehicle-detection The DoorKing 1837-010 Main ControlChain Idler Sprocket Assembly for LiftMaster Elite Gate Operators Optimize the performance of your LiftMaster automatic gate opener with the Elite Q013 Idler Sprocket Assembly, a direct replacement part designed for the LiftMaster SL3000, CSL24, and RLS12 series gate openers. Engineered for long lasting use, this sprocket assembly maintains proper chain tension, ensuring smooth operation and reducing wear on your gate opener system. Key Features
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