LY-868-4 Features: 1.Newly designed parking system with color LCD 2.3-stage beeping mode indicating different distance 3.Cartoon car icon indicating precise state of your parking 4.voice reminder(optional) Technical Data: Voltage: 12V Working Voltage Range: 10.5V ~ 16V DC Current; 50mA ~ 180 mA Range of Detection: 0.2 ~ 1.5 m Temperature for CPU: -40 ~ +80oC Temperature for Display: -20 ~ +70oC