1.2 sensors and 1 camera install in name plate and detect obstacle distance;                                                                                     2. 4.3 inch wireless TFT LCD Monitor show the distance& videos and alarm by 3-step bi-bi sound                                                 3.DIY install                                                                                    

4.Detection range: 2.0m to 0.3m acoustic signal increases in frequency
5.The plate size:550mm*140mm
6.Alarm volume:65dB,Work temperature: -40°C~+80°C
7.Advanced self-diagnosis with error indication
8.There are not any wire between the monitor and Main box and euro plate, it is used 2.4G frequency to transmit the signal. It is wireless. 
9. easy installation