Shanghai 21st Century Electronic equipment Co. Ltd., one of the biggest metal detector manufacturers in China on the basis of new and hi-technology, established in 1998. We are specialized in developing, manufacturing and selling full series of metal detectors, ultrasonic distance measurers, and multifunctional wall scanners —— in DIY and professional grades. With experience and a good reputation in the electronic products market, over 90% of our products are exported to global markets and we have smooth and long-term relationships with many famous international companies.