DISCONTINUED Two Wire Photoelectric Smoke Detector Replaces the Bosch DS-D282 The D263 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 to reduce dust accumulation and nuisance alarms. During a fire, smoke particles reflect...
SPECIAL ORDER Two Wire Smoke w/ 135 °F Heat Sensor Replaces the Bosch DS-D282TH The D263 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 to reduce dust accumulation and nuisance alarms. During a fire, smoke particles reflect light...
Two Wire Photoelectric Smoke Detector with Heat and Sounder Replaces the Bosch DS-D282THS Discontinued The D263 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 to reduce dust accumulation and nuisance alarms. During a fire, smoke particles...
Four Wire Smoke Detector Replacement for DS284 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...
Four-Wire with 135°F (57°C) Heat Sensor Replacement for DS284TH 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...
Four-Wire with 135°F (57°C) Heat Sensor EOL Relay Replacement for DS284THE Special Order 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...