41A4373A Liftmaster Safety Sensors

Liftmaster Garage Door Opener Safety Sensors (old style)

The old style of sensors are distinguished by a hole in the center of the sensor where a bolt goes through to attach to the mounting bracket. The newer style sensors are smaller and snap into the mounting brackets.
This should help you in determining which set of sensors you need. If you're still not sure you can email us and we'll help you.
Compatible with Liftmaster (Sears/Craftsman/Chamberlain) openers manufactured from 1993 to 1997

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