Reversing radar with premium components and circuitry designed to prevent system overheating and overloading, ensuring durability and longevity. The car reversing sensor system includes 4 ultra sensors with dual CPU and advanced chipset for improved coverage and detection from 0 cm to 2.5 m. Capable of detecting small objects, low walls, and potential obstacles, helping to avoid collisions around the vehicle. The alert sounds at varying frequencies depending on the distance to an object—closer obstacles trigger faster and louder alerts, enhancing safety for passengers and pedestrians. Easy installation process: mount the sensors on your vehicle’s bumper using the included hole saw, then connect each of the 4 sensors to the corresponding ABCD socket on the main control box. Safe parking is essential, and these sensors help address common challenges such as limited visibility, inaccurate depth perception, or difficulty detecting small children and close-range obstacles behind the vehicle. Features: - Designed for frost and rain resistance - Rated current: 20–200 mA - Voltage input: 9–16 V DC - Operating temperature: -30°C to +70°C - Alarm sound output: up to 80 dB - Ultra frequency: 40 kHz - Detection range: 0 cm to 2.5 m Package includes: - 1 x main control box - 1 x buzzer - 4 x parking sensors with 2.5 m cables - 1 x power cable - 1 x hole saw - 2 x double-sided adhesive pads - 1 x user manual Four ultra sensors provide superior performance with accurate detection and wide coverage. The system operates in three alert modes based on obstacle distance (0–2.5 m). Sensors are built with anti-freeze and waterproof materials for long-term reliability. Dual CPU system with protective circuitry prevents overheating and overloading, ensures fast response, and avoids interference from other wireless devices. Simple setup—connect each sensor to its labeled socket (A, B, C, D). The alarm speaker delivers clear ble alerts up to 80 dB, increasing in frequency and volume as obstacles get closer. The speaker can be easily mounted on the windshield or dashboard for optimal sound projection.