Interlogix Photoelectric Smoke Detector 4-Wire w/ Heat 6/12VDC

Be the first to review this product

449AT Interlogix Photoelectric Smoke Detector 4-Wire w/ Heat 6/12VDC
Brand: Interlogix
Part Number: 449AT

Availability: This product has been discontinued.




The 449ATInterlogix Photoelectric Smoke Detector is perhaps the most intelligent smoke detector on the market today. Smoke detectors are certainly crucial to any home security system, but those of us who aren't security experts might not know if we're even installing the unit in the right place! Luckily, the folks atInterlogix thought about just that when they equipped the this Photoelectric Smoke Detector with a Self-Diagnostics capabilities, which includes automatic sensitivity testing. What this means is that the smoke detector continually monitors its own sensitivity and operational status, and provides a visual trouble indication if it drifts out of sensitivity range or fails internal diagnostics. That way you'll never run the risk of having your smoke detector installed improperly! Furthermore, the Interlogix Interlogix Photoelectric Smoke Detector has superior protection against fals alarms caused by dust, insects, RF and ambient light.


  • Intelligent self-diagnostics
  • Field-replaceable optical chamber
  • Low-profile design
  • Plug-in terminal block
  • Advanced false alarm immunity
  • Meets NFPA 72 field sensitivity testing requirements without the need for external meters
  • On-site maintenance alert
  • Model 449CSRH activates local alarm for smoke-perfect for rooms where smoking is permitted

Additional Info

Additional Info

Part Number 449AT
What's in the box (1)Interlogix Photoelectric Smoke Detector 4-Wire w/ Heat 6/12VDC
Variant N/A


Write Your Own Review

You're reviewing: Interlogix Photoelectric Smoke Detector 4-Wire w/ Heat 6/12VDC

How do you rate this product? *

  1 star 2 stars 3 stars 4 stars 5 stars



Alarm @ Relay Specifications 2.0 A @ 28.0 V
Alarm Current Consumption [Nominal] 15.0 mA
Color White
Current Consumption w/ Alarm[Nominal] 15.0 mA
Detection (Operating) Range 3.1 to 1%/ ft max; 3.1 to.5%/ft max
Detector Head Depth [Nominal] 1.85 in
Detector Head Diameter [Nominal] 6.1 in
Field Wiring Size [Minimum] 14.0 AWG
Field Wiring Size [Maximum] 24.0 AWG
Heat Detection Specifications - Fixed [Nominal] 135.0 °F
Heat Detection Specifications - Rate of Rise >105°F and Rate of Rise 15°F/min
Height [Nominal] 1.85 in
Maximum Ripple [Maximum] 10.00%
Operating Humidity [Minimum] 0.0 % RH
Operating Humidity [Maximum] 95.0 % RH
Operating Temperature [Minimum] 32.0 °F
Operating Temperature [Maximum] 120.0 °F
Operating Voltage [Minimum] 5.1 V
Operating Voltage [Maximum] 27.0 V
Packaging Basis [Nominal] 10.0 per carton
Polarity Reverse Current [Nominal] 10.0 mA
Regulatory Approval UL 268
Relay @ Contact Rating 500.0 mA @ 36.0 V
Sensitivity - Photoelectric [Minimum] 0.05%
Sensitivity - Photoelectric [Maximum] 3.10%
Sensitivity - Photoelectric [Nominal] 3.10%
Standby Current Consumption [Nominal] 70.0 µA