The 41A4373A Sensors are Replacement Safety Sensors (infrared eye) for 1993-late 1990s operators with the Safety Sensor option. Billion code series with the Green LED light***Not compatible with sensors that have Red LED lights ***If your sensors have a green light on one sensor and an orange light on the the other, you need the 41a5034 sensors. **** Model # 41A4373 Features: For garage door openers that currently have sensors installed 41A4373A Sensors are compatible with LiftMaster and Chamberlain Brand from 1993 - late 1990s Each sensor has a green light and a bolt that runs right through the center of each sensor Designed to splice into your existing wires Includes 1-sending unit, 1-receiving unit, Wire connectors, and instructions - no brackets.
