Precisely sensor, Simple installatioin, Stable quality DetailScreen type: Digital tubeDisplay size: 133*25*20mmPower output: 4WPower supply: DC 10~15V /24VWork temperature: 40°C-+80°CThe distance of alarm: 2M-0.3MLouderspeaker: 80dBzer built-in typeSensors: 4 sensors system Auto Parking Senor System