The Consilium NS-AOHS-IS is an analogue addressable, intrinsically safe heat detector designed for the Salwico fire alarm systems. Engineered for reliability in demanding environments, this detector is specifically intended for use in hazardous areas where explosive atmospheres may be present (Zone 0, 1, or 2). It utilizes a high-quality thermistor to accurately measure ambient temperature, providing an early warning for both rapid temperature increases (rate-of-rise) and fixed high temperatures. Its robust construction and ATEX/IECEx certifications make it an ideal choice for fire detection in marine, offshore, and industrial applications requiring the highest level of safety and performance.