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Fireboy-Xintex Fixed Heat Detector w/Base

Fireboy-Xintex Fixed Heat Detector w/Base

Only 5 left in stock


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fixed heat detector with base

the fireboy-xintex heat detector uses a single thermistor to sense the air temperature around the detector. This heat detector was designed to detect how fast the temperature is increasing.


  • 163°f fixed heat detector
  • housing: white flame-retardant polycarbonate
  • terminals: nickel-plated stainless steel
  • ideal in environments that are dirty or smoky
  • unaffected by wind or atmospheric pressure
  • remote test feature


  • detection principle: measurement of heat using a thermistor
  • sampling frequency: once every four seconds
  • supply voltage: 8.5 v dc to 33 v dc
  • supply wiring: two wire supply, polarity sensitive
  • power-up time: < 20 seconds
  • minimum: ‘detector active’ voltage: 6 v
  • holding voltage: 5 v – 33 v
  • minimum holding current: 8 ma
  • minimum voltage to light alarm led: 5 v
  • alarm reset voltage: < 1 v
  • alarm reset time: one second
  • alarm indicator: integral indicator with 360º visibility
  • operating & storage temperature: -40ºc to +70ºc


  • open-web casing that enables air to flow freely across a thermistor which measures the air temperature every two seconds
  • a microprocessor stores the temperatures and compares them with pre-set values to determine whether a fixed upper limit – the alarm level – has been reached
  • detectors the microprocessor uses algorithms to determine how fast the temperature is increasing

Additional information

Weight0.3500 lbs
Dimensions7.00 × 5.00 × 3.00 in







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