The Genie 39272R RPM sensor/optical interrupter from Garage Door Supply Company is a replacement sensor for Genie garage door opener models 1028 and 2028. Models 1028 and 2028 are Genie ReliaG Pro Series garage door operators. The lowest prices on all replacement parts and accessories for Genie model garage door operators are at GarageDoorSupplyCo.com. We also offer fast turnaround on orders and bargain shipping rates.Product Highlights: