VFD Display Parking Sensor High Quality and Competitive Price CE, FCC Approved ... .Embedded detector sensors which requires installation into your rear bumper.4.Power output: 4W; Power supply: DC 10-15V / ... the model with 2, or 4, or 6, or 8 sensors.5.Wireless parking sensor,then it is no need to ... the vehicle,also save labour cost.6.Speaker car parking sensor,it can tell you the alarm distance in english ...