Digital colorful LED display??Help to prevent dangerous and costly collisions</br>Professional Sensors?? High Sensitivity??High-volume warning buzzer with ON/OFF key</br>4 Waterproofing?? Anti-frost?? Anti-sand Sensor systems for enhanced coverage and detection</br>Prevent future dangerous and costly collisions</br>Help to increase safety for passengers?? pedestrians and your family</br></br>Product Description</br></br>1. Rate Voltage: 12V<br> 2. Operating Voltage Range: 9~16V<br> 3. Rate Current: 20~200mA<br> 4. Detecting distance: 0 - 2.5m<br> 5. Ultrasonic Frequency: 40KHz<br> 6. Working Temperature: -30~80???C<br> 7. Display Working Temperature: -20~60???C<br><br> Package Contents<br> - 4 x Parking Sensors with 2.5m Line<br> - 2 x Double Side Sticker<br> - 1 x Main Control Box<br> - 1 x LED Display Indicator with 5m Line<br> - 1 x Hole Saw<br> - 1 x Power Cable<br> - 1 x User manual<br></br><br/>http://www.amazon.com/gp/product/B019K5YZXS