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Rate-of-Rise heat detectors are particularly suited in areas where the temperature is normally fairly stable - useful for low ambient temperature areas where the response of fixed temperature may be slower. It activates upon the rapid rise in temperature.
Fixed Temperature Heat Detectors are particularly suited to areas where the temperature can fluctuate for a natural reason - e.g. where there are large windows or industrial heat-producing processes. It is preset to trigger an alarm when the temperature reaches approximately 57℃ - therefore an excellent way of avoiding continual alarms in areas where the temperature fluctuates rapidly.
The DET-C631 optical smoke detector can combine with the standard base of model DB-6.