With the rapid development of automobile industry, city parking has become a major problem. Tight parking spaces just one hand, but the key issue is parking, and timely information for drivers parking is opaque, which means that the owner does not know there is free parking in the vicinity. Parking Information has become a destination near the driver of the most scarce resource. Real-time intelligent parking guidance system is an effective way to solve this problem, it can maximize limited resources and can significantly reduce parking personnel costs, IOT wireless parking sensor perception is the key equipment to achieve this goal through it You can quickly build a low-cost real-time parking information systems, intelligent parking guidance systems, urban real-time push free parking systems. Things perceive wireless parking sensor WL-WPCD-01 using networking technology, whether it is new or existing parking lot parking are no wiring, very easy to complete large-scale rapid deployment of intelligent upgrade. The main feature of Things technology, very easy to install and deploy; industrial design, to adapt to harsh environments; Garage for real-time detection of the presence of a vehicle; the use of wireless networking technology, can connect up to 65,000 sensors. Conditions of Use: Install in the upper parking (range 1.0m to 3.5m) Technical Data communication ZigBee communication distance unlimited product specifications diameter 100 * 25 (mm) Weight 120g physical principle of ultrasonic sensing range of 0.4 ~ 3.7m maximum distance Error 0.1m working voltage 220V Ambient temperature -20 ~ + 50 Operating temperature -20 ℃ to 65 ℃? Storage temperature -40 ℃ to 85 ℃ Operating Humidity 30-90% (relative humidity)