NicCheck Cotinine Controls

(2 x 10 mL) NicCheck Positive/Negative Cotinine control set in human urine. For use with Nicheck I Test Strips. Contains 0.1% Thimerosol. 1-Positive 15 ug/mL (Part# 600-202), 1-Negative 0 ug/mL (Part# 600-200). Controls can be shipped at room temperature. Controls can be left out during the day if need be (performing screening tests) but should be returned to the refrigerator when not in use.