FSP-951 + B501BH-3

The NOTIFIER FSP-951 is an intelligent addressable photoelectric smoke detector paired with the B501BH-3 sounder base for enhanced audible notification in FlashScan/CLIP systems.​
This combination integrates smoke detection with a built-in horn producing Temporal 3 or continuous tones (high/low volume selectable), ideal for dwelling units meeting NFPA 72 and FM3150 requirements.
Key Specifications
Feature
Specification
Detector
FSP-951 photoelectric head (0.5-4.0% obs/ft sensitivity) ​
Base Type
B501BH-3 intelligent sounder base (Temporal 3/continuous tone) ​
Sound Output
High: >75 dBA; Low: 45-75 dBA (at 10 ft, 16 VDC continuous) ​
Power Options
External 16-33 VDC or SLC loop-powered (DPDT switch) ​
SLC Current
Standby: 110 µA; Alarm: 6.5 mA low vol. (<35 mA high vol.) ​
Voltage
SLC: 15-32 VDC; Ext: 16-33 VDC ​
Size
Base dia: 4.04" (10.26 cm); Ht: 1.495" (3.8 cm w/o detector) ​
Temp/Humidity
-4°F to 120°F (-20°C to 49°C); 10-93% RH non-cond. ​