Shantou Institute of Ultrasonic Instruments Co., Ltd. (siui), a shareholding company headquartered in Shantou city, southeast of China, is an ISO certified company and has been dedicated to R& D, manufacture and sales of Ultrasonic Flaw Detectors for more than 40 years.

We keep upgrading our technology and strive to serve our customers with reliable quality, high performance and competitive price NDT products. All the products available are EN compliant and CE marked, which ensures high quality.

SIUI has a complete product line, including phased-array ultrasonic flaw detector, conventional flaw detector, thickness gauge, and up to 500 types of probes and accessories.

Our products can be applied in many ultrasonic flaw inspection fields, such as machinery, metallurgy, railway, shipbuilding, aircraft and building. SIUI will keep upgrading our current product lines and deliver better solutions for ultrasonic testing. since 1995, SIUI has been certified by lots of domestic and overseas authorities.

ISO9001 Certification

European CE Marking

China' s national ultrasonic standard for equipment and probe, is drafted by SIUI

Product Certification issued by Ministry of Railway

An affiliated unit to the Product Quality Supervision and Test Center for Mechanical Industry Ultrasonic Instruments

The only professional institute of ultrasonic instruments in China