Rear and front parking system KEETEC with 8 black sensors and LCD Display with the adjustable volume button on it. The system warns the user by acoustic signals. Dual intelligent functions for cars with a tow-bar, spare wheel or other protrusion. New functions of sensitivity setting and learning function added. Perfect performance under heavy rain environment. Set includes 4 pieces of ultrasonic sensors, control unit, LCD Display and wiring. The unit is for vehicles with 12V DC only.