The XPander Heat Detector utilises an open-web casing which allows air to flow freely across a thermistor which measures the air temperature every 2 seconds. Its microprocessor uses algorithms to determine how fast the temperature is increasing and thus be detected at an earlier stage than with a static detector. A rate-of-rise detector is generally preferred to a static heat detector, unless sharp increases in temperature are part of the normal environment in the area protected by the heat detector. EN54-5 A1R Heat DetectorCan be used in areas where Smoke Detectors are unsuitableEN54-25 Wireless Fire Detection communicationXPert 7 addressing
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