Street Address: No.168 Laner Rd, Lanshuipo, Longdong, Longgang, Shenzhen, Guangdong
City: Shenzhen
Province: Guangdong
Country/Region: China
System include 4 ultrasonic sensors& Control box LED display About the Display with 4 distance waves 2 digit distance meter Show distance from 2.5m to 0.3m with buzzere built-in