Features Smart Testing: Comes with a wide range of 28‑450cm, this ultrasonic sensor module enables simpler distance measuring. Reliable Work: Waterproof and dustproof, the distance meter board can adaptive to various environments with stability. Extensive Use: Allows for wide application to parking lot, CNC inspection, vehicle sensing and so on, very practical. Better Design: The main board are separated from the probe, which ensures better protection and excellent durability. Easy to Install: Designed to have a compact size and a light weight as well, the installation is very simple to finish. Specification: Item Type: Ultrasonic Module Model: DYP-ME007YS Working Voltage: DC 3.3-5V Working Current: 20mA Measurement Mode: Plane measurement mode. Measuring Distance: Approx. 28 ~ 450cm / 11.02 ~ 177.17in Package List: 1 x Ultrasonic Module Package List 1 x Ultrasonic Module