FREE (to good home in possession of an appropriate license) BIODEX Medical Systems, Inc. Atom Lab 100 Dose Calibrator with 210.0 microcurie Cs-137 check source. Purchased new in 1995. Hardly used. All documentation and manuals included. Contact: David J. Durkee Radcor, LLC 345 Laurelwood Drive Salem, CT 06420 (860) 887-1538 radcorllc@aol.com