Digi-Code Model CR2149 Universal Garage Door Opener Safety Beam Sensor

The Digi-Code CR2149 universal sensor beam from North Shore Commercial Door works with almost all major garage door opener brands, including Stanley, Linear, Chamberlain and LiftMaster. Digi-Code's CR2149 sensor is compatible with Moore-O-Matic, Raynor, Genie and post-1995 Overhead Door brands. These Digi-Code universal sensors are self-programming, which means all the installer has to do is hook the beams up to the existing wiring and mount the units to the wall. Because the beams are non-polarized, it's impossible to hook them up backwards. These affordably priced sensor beams offer superior filtering from sunlight, too. The CR2149 kit includes one sender and one receiver module, two mounting brackets, four wood screws and easy-to-follow instructions.
Product Highlights:
Kit includes sender, receiver module, two mounting brackets, four wood screws, instructions
Works with most major garage door openers brands, including Stanley, Chamberlain, LiftMaster, Linear, Moore-O-Matic, Raynor, Overhead Door (1995 and later)
Non-polarized beams
Superior filtering from sunlight
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[@helenlim6675]

your video tell me nothing as!!! showing all those parts that came out of the box so what next how do you hook up the sensor where do we connect the wires???