Car Reversing Radars with 4 Parking Sensors Distance Detection LCD Display Audio Backup Alarm Kit Car Parking Sensors <p>The Automotive Radar Anti-Collision System is a safety aid for car exercise, sleeping areas, etc. Its principle is similar to that of bat acoustic measurement, using microcomputer system operation command and control, indicating the orientation of obstacles and the distance between the body and obstacles by sound and display, respectively, to avoid collisions.</p> <p>Functional features of this anti-collision system:</p> <p>◆ Rear-end collision avoidance</p> <p>◆ Four-way detection</p> <p>◆ Intelligent microcomputer control, accurate digital display of obstacle distance</p> <p>◆ Not affected by the environment</p> <p>◆ Anti-electromagnetic interference, no effect on the original electronic system.</p> <p>◆ The probe adopts embedded installation, the multi-color configuration sensor is delicate and small, easy to install.</p> <p>Technical parameters of car reversing radar:</p> <p>◆ Detection distance: behind the car: 0.3 - 2.3 m</p> <p>◆ Operating voltage: DC12V(+-2V)</p> <p>◆ Operating current: 20mA - 200mA Power: 2W</p> <p>◆ Sonic detection frequency: 40khz Detection angle: H &gt; 80 degrees V &gt; 70 degrees</p> <p>◆ Operating temperature: - 40 - 80 ℃ Warning volume: &gt; 70dB</p> <p>Alert mode:</p> <p>◆ Sound tips: Voice, beep, mute three modes can be switched,</p> <p>◆ Digital tips: Displays the nearest obstacle distance from the car</p>