Bosch D256A Indoor Built-in Wired

Fixed‑temperature, Rate‑of‑Rise Heat Detector Heads - Mounts on low‑profile six‑inch diameter base
- Easy head removal for cleaning and servicing
- Available in 24 VDC, 135°F (57°C) or 190°F (88°C) fixed settings
- Dual built-in power and alarm LEDs viewable from 360°
- Highly stable operation and RF/Transient protection
- Electronic heat sensing operation

<b>D256A Fixed-temperature (135°F [57°C]),</b>
Rate-of-Rise Heat Detector Head Fixed‑temperature (135°F [57°C]), rate‑of‑rise mechanical heat detector head for use in 12 VDC or 24 VDC nominal circuits; re-quires a base.