DESCRIPTION The Apollo 55000-122APO can be used with most conventional fire alarm panels, the external detector casing matching the smoke detectors in the range. Heat Detectors monitor temperature by using a dual thermistor network which triggers the fire control panel at a preset level. The S65 A1R heat detector has a fixed upper temperature limit of 57°C but in addition will detect sudden increases in temperature of 12-15°C per minute.
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