FSP-951T+B501/W

The NOTIFIER FSP-951T combines intelligent photoelectric smoke detection with 135°F (57°C) fixed-temperature thermal sensing via dual thermistors, ideal for FlashScan/CLIP SLC systems detecting both smoldering and flaming fires.
Paired with the B501/W white flangeless standard base, it offers plug-in installation, rotary addressing (1-159), and 360° dual-LED status visibility on a low-profile design.
Key Specifications
Feature
Specification
Sensors
Photoelectric smoke + 135°F fixed thermal ​
Base
B501/W (4" white, 12-24 AWG terminals) ​
Sensitivity
0.5-4.0% obs/ft (programmable) ​
Voltage
15-32 VDC (SLC-powered) ​
Current
Standby: 200 µA; Alarm: 2-4.5 mA 
Size
2.0" H x 4.1" D (with base); 32°F-122°F range ​