Wireless Heat Detector


Wireless Addressable Heat Detector

This detector monitors the level of heat in its surveillance. It switches to alarm state when high rate of rise in heat is monitored, or also when the live temperature value exceeds its pre-set threshold value.This detector with a unique ID communicates to the control panel by pin pointing its exact location. It is AA battery powered and provides Low Battery alerts to the control panel. This unit is mainly used at places where wiring is not feasible.

Exclusive Features
  • AA battery (2 Nos) operated
  • Battery life span of 18 months
  • Address can be changed from the panel
  • Detailed location description settings
  • Soft addressing
  • Pre alarm
  • Low battery warning
  • Contamination alarm
  • Remote test facility from the panel
  • Dual bi-color LED indication for 360° viewing angle
  • Insect-resistant screening
  • Easy to maintain/service
Technical Summary
Electrical Specifications
Operating voltage : 3V DC
Quiescent current : 3µA
Alarm current : 1mA
Battery Type : 2x1.5V AA Size Battery
Carrier frequency : 433.92 MHZ
Normal : Green LED (Blinks 50+/-10 sec)
Alarm : Red LED (Glows steady)
General Specifications
Thermal sensitivity : 57ºC 
Operating temperature : 0ºC to 49ºC
Storage temperature : 5ºC to 40ºC 
Life time of battery : 18 Months
Humidity : 0-95% RH (Non-condensing)
Color : White 
Housing : Polycarbonate
Compatibility : ALAW2XV1 Protocol
Without Base : 100x30mm
With Base : 100x50mm
Without Base : 68g
With Base : 108g
Know More

What is a heat detector and how does it work?

Heat detector is an instrument that measures its ambient temperature. It will raise an alarm by monitoring the rate of rise of heat in its surveillance. 

Heat detector consists of a thermistor component that measures surrounding temperature. The resistance offered by the thermistor device decreases with increase in heat sensed by it, thereby increasing the values of voltage and current drawn by the circuit. Detector's intelligence algorithm monitors the difference in voltage values at continuous intervals of time. The higher the difference in voltage, the higher the increase in heat. 

In case of fire, the rise in temperature is rapid. Meaning, in less time the difference in temperature measured is very high. This parameter of rate of rise in heat is considered to raise an alarm confirming presence of fire.  

Further, alarm is also raised when the live temperature exceeds the pre-set upper limit/threshold values of the detector. 

This detector is much more effective than fixed temperature detectors and is also unharmed by dusty or smoky environments.

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