The D281A Ionization Smoke Detector is UL Listed. It detects smoke particles while tolerating conditions of extreme humidity, temperature, vibration, and electromagnetic interference. Use the D281A Detector in applications such as plenum areas or raised compartments beneath floors.
The D281A Ionization Smoke Detector uses current flowing in the ionized chamber to measure smoke particle levels. When the difference in current between the two chambers exceeds the alarm threshold, the D281A Detector signals an alarm.
Also known as: BOS-D281A
For more information about the Bosch Security D281A, please contact us.
Removable, non-polarized, 24 VDC head is easy to
install, clean, and service
Dual chamber design
Compatible with assorted low-profile, tamper-resistant, two-wire and four-wire bases