Title: UL Listed (Water Hazard Entrance Door Alarm) - Meets UL 2017 safety standard Title: Immediate Alert: Sounds in 7 seconds when door is opened Title: Continuous Sounding: Alarm continues until an adult resets it Title: Automatic Reset: Automatically resets under all conditions Title: Adult Pass-Through Feature: Allows adults to go through door without sounding alarm.Title: Low Battery Indicator: Audible alert for low battery.Title: Battery Powered: Uses one 9-volt battery (not included), with approximately 1-year battery life, Weight: 0.6 Pounds, Manufacturer: Below Cost Products.