Appropriate Technical Resources has over a quarter century of experience providing customer focused sales, support and service to the academic, biotech and pharmaceutical communities. Our products combine the best technical innovations, attention to detail and commitment to quality. We can customize our products to fit almost any need. ATR is the U.S. distributor of Sigma centrifuges and accessories, Martin Christ freeze dryers, lyophilizers and vacuum concentrators, our exclusive ATR Rotamix bench top rotator, Stovall rockers and rollers and Elmi bench top plate shakers, flask shakers, microfuges and vortex / rotators. We provide support and service for all of the above.