FST-951 with B501

Voltage: 15 to 32 VDC
Standby Current: Max 200 A at 24 VDC
Maximum Current (LED On): 4.5 mA at 24 VDC
Sensitivity: 0.5% to 4.0% per foot (UL standard)
Operating Temperature: 0°C to 50°C
Relative Humidity: 10% to 93% (non-condensing)
B501/w (Base):
Diameter: 4.0 inches (approx. 10.2 cm)
Connectivity: Screw terminals for Power (+) and (-) and support for Remote Annunciator connection
Material and Color: Pure White. Designed for easy installation and features a tamper-proof locking system.
1 year warranty