Bosch D273 Smoke Detector

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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.

The Bosch D273 Smoke Detector is also known as the Bosch D273 Smoke Detector

D273 Smoke Detector Options
Bosch D273 Smoke Detector (D273)
12/24 VDC photoelectric smoke detector
Ships in 3-5 Days
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Bosch D273 Smoke Detector (D273THES)
4 Wire smoke detector with therm istor, EOL relay/sounder