Size: 2.1''' (5.3cm) high x 4.1''' (10.4cm) diameter installed in B501 base, 6.1''' (15.5cm) diameter installed in B710LPbase.
Shipping Weight: 5.2oz. (147g).
Operating Temperature: FSP-851, 0C to 49C (32F to 120F); FSP-851T, 0C to 38C (32F to 100F). Low temperature signal for FSP-851T at 45F +/- 10F (7.22C +/- 5.54C). FSP-851R installed in a DNR(W), -20C to 70C (-4F to 158F).
UL/ULC Listed Velocity Range: 0-4000 ft/min. (1219.2 m/min.), suitable for installation in ducts.
Relative Humidity: 10%-93% noncondensing.
Thermal Ratings: Fixed-temperature setpoint 135F (57C).
DETECTOR SPACING AND APPLICATIONS
Notifier recommends spacing detectors in compliance with NFPA 72. In low airflow applications with smooth ceiling,
space detectors 30 feet (9.144m) for ceiling heights 10 feet (3.148m) and higher. For specific information regarding
detector spacing, placement, and special applications refer to NFPA 72.
Voltage Range: 15-32 volts DC peak.
Standby Current (max. avg.): 300"A @ 24VDC (one communication every five seconds with LED enabled).
LED Current (max.): 6.5mA @ 24VDC ('''ON''').