Intrinsically Safe doseBadge Noise Dosimeter The doseBadge Noise Dosimeter is available with Intrinsic Safety Certification and this is known as the CR:110AIS version. This version is identified by the gold coloured case. The CR:110AIS version of the doseBadge Noise Dosimeter can be used in hazardous zones, for example in underground mines, petrochemical plants and other areas that require safe measurement equipment. Explosive atmospheres can be caused by flammable gases, mists or vapours or by combustible dusts and the CR:110AIS doseBadge is ideal for use in these types of environments.