【What This Garage Door Sensor Fit for】 Garage door openers( since 1997) already equipped with safety sensors, this 41A5034 Safety Sensor is a Replacement Kit..【41a5034 Garage Door Sensor Replacement】 Compatible with Liftmaster Sears Chamberlain Craftsman garage door openers ( since 1997). For more models have query, pls check the detailed description or send us message for contact..【What This Liftmaster Sensor Replacement Package Include】41A5034 Garage Safety Sensors Kit comes with 2 Safety Sensors (Receiving&Sending) (with attached wires), 2 Mounting Screws, 2 Wing Nuts, 1 installation Instructions and 5 Wire Crimps. If missing parts, welcome to contact us,we will replace new 41a5034 for you at the first time, No any risk to shopping in Amundsen..【Easily installation】 Our 41a5034 garage door safety sensor has equipped with Detailed installation instructions, under the guidance of this manual, you can easily install it by yourself..【Amundsen will not let you down!】Amundsen lifetime warranty -refund or replace with a new 41a5034 safety sensor kit. Buy with confidence. Add to Cart Now!