Specifications: • Shipping Weight: 9.6 oz. (272.15 g) • Normal operating voltage: 24 VDC. • Maximum SLC loop voltage: 28.0 VDC. • Maximum SLC standby current: 375 A. • Maximum SLC alarm current: 5 mA. • Temperature Range: 32°F to 120°F (0°C to 49°C) • Relative Humidity: 10% to 93% (noncondensing) • For use indoors in a dry location • UL/FM Approved