Bibby Sterilin stuart SB2 Manuel D'utilisation page 23

These products meet the relevant EC
harmonised standards for radio frequency
interference and may be expected not to
interfere with, or be affected by, other equipment with
similar qualifications. We cannot be sure that other
equipment used in their vicinity will meet these standards
and we cannot guarantee that interference will not occur
in practice. Where there is a possibility that injury,
damage or loss might occur if equipment malfunctions
due to radio frequency interference, or for general advice
before use, please contact the Technical Service
Department of Bibby Sterilin Ltd.