1.LED pakring sensor system
2.digital showing obstacle distance
3.BIBIB alarm system
4.left and right indicator direction
5.the sensors have self-test function
6.different size and colors of sensors are optional
7.warranty time: 1 year

product confirguration
1.one control box
2.one LED display
3.four sensors
4.one drill to make the hole for the sensor
5.one power drill
6.the essential parts for installlation
7.the package and the manual

package detail
neutral colorful box