Special attention: Please ensure that the installation direction of the sensor is parallel to the ground and the direction indicated on the back of the sensor is correctly facing upwards. Otherwise, there may be issues with sensor sensing. Specifications: 1. Rated Voltage: 12V 2. Operating Voltage Range: 9–16V 3. Rated Current: 20–200mA 4. Detecting Distance: 0–2.5m 5. Ultrasonic Frequency: 40kHz 6. Working Temperature: -30°C to 80°C 7. Display Working Temperature: -20°C to 60°C Features: 1. LED Display Size: 9.9 x 2 x 2.6 cm 2. LED Display Cable Length: 5m 3. Main Control Box Size: 8.9 x 6 x 2.2cm 4. Total Kit Weight: 388g 5. Includes 4 sensors 6. Advanced chipset for enhanced coverage and detection 7. LED display with digital readout and 3-color light bar 8. Detects small objects and obstacles 9. Helps prevent collisions 10. Increases safety for passengers, pedestrians, and individuals near the vehicle Package Includes: 1 x Main Control Box 1 x LED Display 4 x Parking Sensors with 2.5m Cable 1 x Power Cable 1 x Hole Saw 2 x Double Sided Adhesive Pads 1 x User Manual