Mesa Labs MagnaAmp is a self-contained ampoule biological indicator ampoule for monitoring steam sterilization of liquids in ampoules, large containers, or washer sterilizers. The MagnaAmp biological indicator ampoules contains Geobacillus stearothermophilus spores and a specially-formulated culture medium that turns a dramatic yellow if spores grow. The MagnaAmp provides easy visual confirmation of sterilization within 48 hours, without the need for difficult and time-consuming laboratory work. Rauserv c.c. in Johannesburg, Gauteng, South Africa can supply equipment to suit your application, Medical, Dental or Laboratory. Full service and repairs division available to assist at all times.