US Nuclear Corp. has signed an agreement with Qysea Technology Co. Ltd. to build, market and sell its industrial underwater robot sensor systems.

US Nuclear, in Canoga Park, will be the exclusive North American sales representative for Qysea, in Shenzen, China, for nuclear- and chemical-related applications.

The San Fernando Valley company will install the radiological, chemical and biological sensor packages in addition to the data collection/transmission software into the industrial underwater robots supplied by Qysea.

US Nuclear Chief Executive Robert Goldstein called Qysea a perfect match for the company and that will leverage its recent success in supplying sensors to the unmanned underwater vehicle market, capitalizing on a similar customer base.

“We look forward to providing unmanned robots that will have the ability to detect radiation, chemicals and biological pollutants underwater and open a new world of underwater exploration,” Goldstein said in a statement.

Shares of US Nuclear (UCLE) closed down 14 cents, or nearly 11 percent, to $1.14 on the over-the-counter market.