Parking Lot Sensors

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Project Description

Parking Lot Sensors

The Best IoT Sensing Solutions—Directly from the street


Parking lot sensors

Parking lot sensor: Using a magnetic field detects the presence of vehicles

SZ1’s in-ground parking lot sensor enables you to monitor your parking facilities efficiently with real-time, individual vehicle, individual space data. It is the key to smart, active parking lot management.  The effectiveness of a parking lot management system is greatly relied on detection of available parking spaces. WiiUNG
offers parking lot sensing technology that can be easily tailored to your existing parking system, to monitor parking traffic, and to gather live, precise information from each individual parking lot space.

The heart of the WiiUNG sensor is an electro-magnetic sensor that measures the X, Y and Z-axis components of the Earth’s magnetic field. As vehicles come within range of the sensor, changes in the surrounding magnetic field occur and are detected. Each sensor continually monitors the background magnetic field using advanced filtering and noise reduction techniques to differentiate parking events from other electromagnetic interferences or false events.

Smaller Sized, More Friendly For Installation & Maintainance

SZ1 has developed a parking lot sensor that is scarcely bigger than a mug cup in terms of its circumference and measures around about three centimeters in height. The sensors are installed in parking garages or on-street parking spaces. The special thing about this product is that the sensors operate wirelessly and are powered by batteries, which eliminates the effort and expense of having to lay cables.

parking lot sensor installed

Vehicle Detection Sensors – Smart Parking

The smart sensor transmits data via LPWAN (Low Power Wide Area Network) technologies, i.e., NB-IoT (Narrow Band-IT) or UNB-IoT (Ultra Narrow Band-IoT), and is battery powered for several years, so it requires no wires for installation and can be easily fitted into each parking lot space. The key to active parking lot management is the reliable detection of available parking spaces. It is achieved by wireless sensor in every parking space, which can detect the presence of a car in the space and note the arrival/exit time of a vehicle. Parking lot statuses (occupied or idle) are detected and transmitted to a cloud database. This information then be accessed by users through website or mobile APPs to receive real-time updates.

Key Features

• Electro-magnetic sensor technology in every inground sensor
• Wireless for ease of installation and minimal costs by eliminating civil works
• Powered by long-life batteries for low maintenance
• Robust construction to resist both vandalism and accidental damage
• Easy integration with existing parking management systems

parking lot sensor data flow


• Parking space occupancy detection
• Vehicle detection in drive-through
• Vehicle counting in toll booths
• Enable advanced parking space management and planning
• Enable advanced parking guide system


Product Guide
Model No.WH-SXT-EMS-000N-301
Sensor Type3-axial magnetic-field MEMS sensor
Measuring rangeMaximum +/-16G selectable magnetic full scales
Range1~2 km
Power sourceBuilt-in battery
Battery typeLithium-ion
Battery lifetime5~7 years
Input voltage3.6 V
Battery capacity8500 mAh
DimensionsΦ90mm x height33 mm
-40 °C to 85 °C
Compressible Strength>2000 kgs
IP RatingIP68
GPIO interfaceNo


Our mission is to improve the quality of the clients’ business life with safety, efficiency and peace of mind, via simple customization of our existing product lines or design & development of 100% new products.

Lowest Product Failure Rate, Product Life-circle Support;

Increase productivity and decrease costs;

Peace of mind

Proprietary, modular-base solution with interplay of hardware & software.

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Project Goal Recognition

We understand each customer has their own unique knowledge about industrial smart electronics solution, they may face different challenges, thus have different project requirements with different expectation.

Due to the above, the starting point of our job is to recognize the actual project target, helping our customers address the multiple aspects of the whole project, from installation, user experience to maintenance.


Our product team together with skilled engineers, project managers and customer success executives would engage directly with customer’s cross-functional teams, to obtain the full view of client’s challenge as well as the possible untapped pain, while presenting clients the existing solutions & case studies , thus clients could make better decisions about what they should buy.

Research & Design

We are able to develop the customized hardware and software precisely as per clients confirmed requirements.


We would quickly develop a concept-of-approval prototype to realize what clients need, in order to validate the requirements

Test & Trial

We would implement comprehensive testing via trial production, ensuring zero risk of mass-production failure.

Mass Production & Launch

Mass productions come as carefully planned, informed of our customers, with daily logging data shared so that shipment schedule could be reassured.

What Our Clients Say…

SZ1 makes everything clear, simple and transparent, like plugging us into Shenzhen local resources.

Alex, Yandex

For some people, I’m sure SZ1 is just a side show in their business, but for us, it’s a critical part of our success. We have increased revenue 30% since working with SZ1.”
Ozalp Tozan, Research Lab,  PhD & Technology Director of Atilim University

Ozalp Tozan, Atilim University

SZ1 gives us peace of mind as a great technology partner for the most challenging project with A-brand clients.

Tomar , Creative Director, Outform

SZ1 builds retail display solution for us with every user element modular preset, every project they response rapidly, even if we ask for a change in the last minute… amazing partner.

Greg, Account Manager, Jabra

They analyse and understand our requirements for coffee machine vending kiosk like a doctor, many intractable issues were addressed & recognized before project implementation.

Jacky Wong, Project Manager, Jetinno, Guangzhou

Some Of Exciting Projects We Accomplished Before…

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