Color: Black, Silver, White, Gray, Red, Blue, Gold Size: 10*2cm, wire length 5m Weight: 390g Rated working voltage: 12V DC; Working current: 50150mA; Detection distance: 30CM ~ 250CM; Display distance: 30CM ~ 250CM (centimeter-level display accuracy); Working temperature: -40+80; Ultrasonic frequency: 40kHz1kHz; Function: 1. Bibi three-level heartbeat prompt tone; 2. Green, yellow, red three-color 7-segment LED light bar indicates the distance of obstacles; 3. 30CM250CM, centimeter-level display accuracy, accurately display the distance of obstacles; 4. Bi.Bi.Bi. beeps to alert the alarm step by step, the closer the distance, the more urgent the alarm sound; 5. The probe self-checking function, the probe abnormal state prompt, to avoid the reverse collision caused by the probe damage; 6. Equipped with 4 ultrasonic probes