Bosch has released a new family of photo beam detectors, Photobeam 3000 and Photobeam 5000 , offering a range of single channel dual beam, single channel quad beam, and 4 - channel quad beam models for both indoor and outdoor use. PLEASE NOTE: The new Quad Beam models will be available as soon as we sell off our stock of the existing Quad Beam detectors. ( See chart on page 2 for specific products.)