"There's going to be radiation testing for food, water in Japan. Thermo Fisher does that, but the one that's most levered that I think it could really move the needle for is PerkinElmer."
It's a company that is already doing "extraordinarily well" that could see significant gains from the Japan nuclear crisis, Cramer said. The company does diagnostic testing of water and food and they're already in China, Cramer added, so "they're naturals to do it, so I bet they get a fair share of business. In the interim, again, if they don't the business is doing incredibly well."
Call Cramer: 1-800-743-CNBC
Questions for Cramer? firstname.lastname@example.org
Questions, comments, suggestions for the Mad Money Web site? email@example.com