About Us
The first company in China to produce Lineas quartz sensors
OTTAI start the production and sales of piezoelectric quartz sensors from 2003, and have installed them in many road over-limit control projects both at domestic and abroad.
Furthermore, we have been recognized by the Hunan Highway Administration Bureau(HAB) as a designated supplier of vehicle dynamic weighing equipment, and we provide products and technical support to our clients in the field of road traffic data management.
Our Advantages
Keep core technology on quartz piezoelectric sensor, continuously improve and represent the most advanced manufacturing process
Original factory
The annual output of quartz sensors reaches 10,000 units
Solution provider
Offer reliable products, also assist customers in achieving the entire project
Cost-Effective
Provide the most cost-effective and appropriate products and services
Dimond quality
Functional tests and rigorous durability tests under complex working conditions before delivery
Featured products
We will reply under 10 hours with your inquiry
Frequently Asked Questions
How can i get more information about your products?
You can send us an email or ask our online representatives and
we can send you the latest catalog and price list.
What is the shipping way?
By sea,air,Fedex DHL UPS and etc
Do you accept OEM/ODM?
Yes,but we have quality reqiurements,please contact us directly.
How long is your delivery time?
Generally it’s 5 days if the goods are available. It would be 20-30 days based on ozone application and capacity requirements.We could supply ODM and OEM, design layout based on actual working condition.
How do you control quality?
The company strictly implements the ISO9001 quality management system, has passed ISO14001, ISO45001 management system certification and SGS. In addition, we have more than 20 patents technology to ensure stable and reliable product quality.
Does your product have any warranty?
Yes, we offer 12 months warranty from the date of the customer’s confirmation.Beyond the warranty, we will also supply life-long maintenance but we will charge maintenance fee.
What is your term of payment?
We accept T/T, L/C, Western union, Credit card etc.
How to install the device when it reaches the site?
We will provide you with detailed installation instructions, by the way online installation instructions. If necessary, we will send a technician to help you.
Are you free to provide solution?
Based on your requirements, we offer the most cost-effective solution. From equipment purchase to installation and commissioning, everything will be clearly explained to you.
Do you have any oversea cases for reference?
Yes, we worked with many highway projects overseas. Customer feedback indicates significant cost savings.
What's the benefit by using your WIM system?
It can significantly enhance the efficiency of traffic management. It can automatically identify and record violations without human intervention, saving both labor and time costs
Can the accuracy of your sensors meet the requirements?
We offer products that comply with OIML and ASTM standards. We select compliant products based on the project’s requirements.
OUR CERTIFICATE







Completed Projects
Technology-based OVERLOAD control and TRAFFIC DATA statistics
Blogs and forums
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