JX-01C040 Rainbow Digital Display Parking sensor (LED Display) Rainbow digital display with warm colors Colorful beam displaying corresponding to the sensors respectively Sensitively detecting ability -- suit for high speed reverse Intellectualized anti-jamming analysis system -- low rate of wrong reporting Inside speaker and four-converter voice reminding Phonic module can be plus -- reporting reversing distance with graceful voice Inside self-recovering fuses -- power protection of wrong connection ?Specifications Working voltage: 10-15.5 V Maximum working current: ≤180 mA Buzz volume: ≥70dB Height of sensor installation: 0.5-0.7m Detecting scope: 0.2m-2m Working temperature: -40~+80°C