1. Sensor type: drilling ( make a hole on car bumper for sensor mounting ). 2. Sensor color: black, white, silver, red, blue, yellow or ordered by customer. 3. Suitable for 6 sensors. 4. Automatically starts after turning on the power. 5. Bionic detecting-head design to measure accurately. 6. Distance display:?2.0 ~ 0.3 M. 7. Alarming distance:?1.5 ~ 0.4 M. 8. Operating temperature:?-30C ~ 70C. 9. Alarming volume:?>73dB. 10. Operating voltage:?DC 10-15 V. 11. Max. power consumption:?3 W.