electromagnetic antenna parking sensor

*Electromagnetic antenna parking sensor *Detection in all directions for no dead angle *Detecting from 0.8m *Totally built-in installation with no bad effect to car appearance * The sensor antenna is installed inside the bumper, no need for drill on the bumper. * Easy installation, totally built-in mounting with no bad effect to the car appearance. * Detection in all directions without dead angle. * During approaching to an obstacle, the electronic unit activates the acoustic signal with types of beeping. 1), A continuous sound of "BEEP" approximately between 0-0.3m 2), A short interval sound of "BEEP" approximately between 0.3-0.5m 3), A long interval sound of "BEEP" approximately between 0.3-0.8m TECHNICAL CHARACTERISTICS. * Working voltage: DC12V +/-2V * Currency consumption: <50mA. Working temperature: -20 +70 * Detection range: Approximately in 0.7m (Notes: The detection range is greater for big conductor, narrower for small nonconductor)