VFD Display Parking Sensor High Quality and Competitive Price CE, FCC Approved Features: ... Power output: 4W; Power supply: DC 10-15V / 24V; Work temperature:-40°C-+80°C; Alarm distance:2m-0.3m; Buzzer ... or 4, or 6, or 8 sensors.5.Wireless parking sensor,then it is no need to run a wire from ... the vehicle,also save labour cost.6.Speaker car parking sensor,it can tell you the alarm distance in english ...