Bosch D283A smoke detector

Photoelectric Smoke Detector Heads - 24 VDC input
- Mounts on low-profile base
- Easy head removal for cleaning and servicing
- Two-wire and four-wire base options
- Flashing Power-On LED

The D282A and D283A detectors detect the large smoke particles which typically result from wood, paper, and fabric combustion. The D283A is a smoke detector that also has a +135°F (+57°C) fixed temperature heat sensor. Use in areas where the ambient temperature does not exceed +100°F (+38°C). These detectors are compatible with 24 VDC circuits.
These detectors have two components: the detector base and the detector head. The base is permanently attached and wired to a back box. The interchangeable heads quickly detach for replacement and cleaning without affecting circuit wiring.