TORRANCE, CA (10.18.2017) – October 18, 2017: Rydeen Mobile Electronics announces shipping of new PSR4000D Digital Parking Sensor System. This system works on the rear and/or front bumper applications. It comes standard with four (4) standard digital sensor heads that can be used for the rear and/or the front applications. Also available are two different TORRANCE, CA (10.18.2017) – October 18, 2017: Rydeen Mobile Electronics announces shipping of new PSR4000D Digital Parking Sensor System. This system works on the rear and/or front bumper applications. It comes standard with four (4) standard digital sensor heads that can be used for the rear and/or the front applications. Also available are two different