NEMA 1 enclosure, designed for ease of installation, rated for indoor use;Automatic alarm reset;Red "alarm" light and green "power on" light, alarm "test" switch, and horn;"silence" switch;Alarm horn sounds at 87 decibels at 10 feet (3 meters);Can be used with any UL Listed/Recognized switching mechanism rated;to include 1 amp, 9 VDC load;If primary power fails, the alarm system continues to work due to battery;backup feature (battery not included);Switching mechanism operates on low voltage and is isolated from the;power line to reduce the possibility of shock;Low battery chirp;Easy access battery compartment;External terminal block for easy float switch installation