The Apollo Series 65 CS Fixed 90°C Heat Detector (55000-137APO) is a high-threshold static sensor designed for environments where rapid temperature fluctuations are common. Classified as a CS device, it is engineered to remain stable during intense heat spikes, only activating the fire alarm once the ambient temperature reaches a fixed limit of 90°C.Fixed Static Response: Unlike rate-of-rise detectors, this unit ignores the speed of temperature change, providing a reliable “limit switch” for high-heat zones.Maximum False Alarm Immunity: Ideal for settings with heavy steam or industrial machinery that creates sudden bursts of heat which would trigger standard sensors.Reliable Performance: Features a single-thermistor design that offers consistent monitoring in harsh conditions where smoke detection is not viable.Interchangeable: Fully compatible with the Series 65 range of bases, allowing for quick installation or replacement without the need for rewiring.The CS-class 90°C detector is the primary solution for commercial kitchens with high-output grills, laundry facilities, and industrial drying rooms. It provides contractors with a specialized tool to ensure fire safety compliance in the most demanding thermal environments without the risk of nuisance alarms.Explore the full Series 65 range for compatible products and accessories.Why buy from Direct Trade Supplies?Competitive trade pricing, fast UK delivery, and trusted products from leading brands.
