... Display) / VFD (Vacuum Fluorescent Display) is more colorful, parking sensor, car parking Audible distance indication: 1) 1.50 to 0 ... Working voltage: 10 - 15V 2) Working temperature: -30 ~ 70°C3) Current consumption: <100mA 4) Acoustic volume: >85dB at 10cm 5) Response ... time: 300ms 6) Ultrasonic frequency: 40kHz7) Radio frequency: 433kHzparking sensor, parking sensor kit, car parking, auto parking ...