Hi Here's the info I have on Western Scientific: Western Scientific 9445 Farnham St. San Diego, CA 92123 800-443-6699 858-565-6938 Fax Juan Mena-Aguayo x255 Ed Hoeffner 1-271 BSBE 312 Church St. SE Mpls, MN 55455 hoeffner at dcmir.med.umn.edu 612-625-2115 612-625-2163 fax