WA9-04 AC/DC, (9-Volt) High or Low Water Alarm - 10 ft Float cord - Reversible by user to detect High or Low water condition - User Safe 9-Volt AC power, 9-Volt DC backup - 6 foot AC cable - std. 10 foot float cable - Easy conversion From high water to low water (switch 2 wires) alarm - 85 to 90 Decibel sound alarm - Reliable Non-Mercury float switch - Easy installation - Attachment strap included - Corrosion resistant ABS float - UL listed and CSA approved 9-Volt transformer and float system, 1 Year limited warranty. - Alarms approx 36 + hours on new quality battery