For over fifty years, Simmler continues its tradition of  manufacturing the highest quality in vitro diagnostic reagents to service your laboratory needs. From our past to our present, Simmler has held itself to the highest standards of quality and customer service in the industry. Simmler services a wide variety of hospitals and laboratories in the United States, Canada, and other select global markets. Simmler’s premier products, the S0412-00 Fetal Cell Stain Kit 300 test kit and S0412-100 Fetal Cell Stain Kit 100 test kit are used as the industry standard for the modified Kleihauer-Betke method of the detection of fetal cells in maternal blood.