The Tyco MD601Ex is a high-performance, intrinsically safe heat detector engineered for reliable fire detection in hazardous environments where explosive atmospheres may be present. As a rate-of-rise (A1R) detector, it is designed to trigger an alarm upon detecting a rapid increase in temperature, a key indicator of a developing fire. It also provides a fixed temperature response for slower-burning fires. Fully compliant with EN54-5 standards, this detector is an essential component for conventional fire alarm systems in Zone 0, 1, and 2 hazardous locations, ensuring safety and performance when used with a certified galvanic isolation barrier.