... sensor < 2.5W 4. CE&Emakr 2012 new parking sensors Parking sensor main advantages1. Digital LED display parking sensor, 4 ... rear ultrasonic sensors, "Bi Bi..."Voice alerting,2. Turns on automatically when ... 848Brand AlostarColor of displayGreen,yellow,redVoltageDC 12VWarming SoundBi-Bi soundPower4WWorking Temperature-35°C~+80°Csensor1,2,3,4,6,8, ...