Bosch D273THR Smoke Detector - TAA Compliance D273THR

Bosch D273THR Smoke Detector - TAA Compliance

The D273 Series Detector models use an infrared (IR) LED light source and a silicon photodiode to measure light in a chamber. A fine screen covers the chamber to deter insects and reduce dust accumulation and nuisance alarms. During a fire, smoke particles reflect light onto the photodiode. When the photodiode measurements exceed the alarm threshold, the detector signals an alarm condition. After the alarm condition clears, interrupt power at the control panel to reset the detector. When a D132B Reversing Relay Module is used, the LED does not latch on alarm.

Technical Specifications:
Height: 2"
Package Contents: D273THR Smoke Detector, 1 x Detector, 1 x Literature pack
Additional Information: 12 VDC or 24 VDC input, Light-emitting diodes (LEDs) indicate the status of the chamber, power, and alarm, Removable terminal block to simplify wiring connections, Cable connection point for voltmeter sensitivity test, Trim Plate TP280 for retrofit and remodeling purposes, Material: ABS Plastic