Specifications: 1. Digital LCD showing obstacle distance 2. 4 sensors for rear available 3. Alarm by Bi-Bi sound(Voice Indication available) 4. Blue color background 5. The simulative vehicle is displayed in the colorized screen 6. Digital signs (Attention, Brake & Stop) will be displayed in the colorized screen 7. All kinds of sensor colors and styles are available 8. High quality and easy to install Technical: 1. Rated Voltage: 12V DC 2. Operating Range: 10.5V～ 16V DC 3. Rated Current: 50mA～ 180mA 4. Detecting Distance: 0.3～ 2.0m 5. Ultrasonic Frequency: 40KHz 6. Display Working Temperature: -30 ～ +70℃ Bule screen LCD Parking Sensor with 4 sensors Specifications: 1. Digital LCD showing obstacle distance 2. 4 sensors for rear available 3. Alarm by Bi-Bi sound(Voice Indication available) 4. Blue color background 5. The simulative vehicle is displayed in the colorized screen 6. Digital signs (Attention, Brake & Stop) will be displayed in the colorized screen 7.All kinds of sensor colors and styles are available 8. High quality and easy to install Technical: 1. Rated Voltage: 12V DC 2. Operating Range: 10.5V16V DC 3. Rated Current: 50mA180mA 4. Detecting Distance: 0.3 2.0m 5. Ultrasonic Frequency: 40KHz 6.Display Working Temperature: -30 +70