Our Indoor APak® Alarm System monitors liquid in sump pits, pump chambers, holding tanks, and other water systems. The small size of the reed sensor switch makes it ideal for the compact basin typical in basement sump applications. Our APak alarm will provide an audible and visual warning if the water level presents the danger of overflow. This early warning gives you time to act and protect your property from flooding. The APak alarm is powered by a 115 V electrical circuit or two AA batteries so it functions even in the event of a power outage. During standard operation, a green light indicates that the power is on. A chirping noise will indicate a low battery condition. A red light will illuminate and an 80 dB buzzer will sound notifying you of a high-water condition. The APak also includes a Silence/Reset/Test button allowing you to manually initiate certain functions. These indoor alarms have a compact design and are simple to install on the basement wall. With an APak® alarm in place, you can have peace of mind knowing that you'll be alerted of any high-water conditions.