Chamberlain 820CB Replacement Garage Door Safety Sensor, 2-Pk. - Quantity 1 Sensors home_selected_Nov2025 5 in 1 Wireless Charging

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Superior Seal Highly conformable to accommodate imperfect sealing surfaces

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Chamberlain 820CB Replacement Garage Door Safety Sensor, 2-Pk. - Quantity 1 Sensors home_selected_Nov2025 5 in 1 Wireless ChargingChamberlain 820CB Replacement Garage Door Safety Sensor, 2 Pk. Quantity 1 The Replacement Safety Sensors project an invisible light beam across the inside of the garage door to prevent accidents and are required for safe use of all Chamberlain Garage Door Openers. Whenever there is an obstruction, the garage door will automatically reverse before causing any damage. Chamberlain compatible, these sensors replace defective or damaged sensors for every