The convenient and easy to use RWD14 water alarm offers superior protection against leaks and water damage near potential trouble spots close to plumbing around the home or office. Water leaks can come from multiple sources in the house including a sump pump, water heater, toilets, dishwasher, sinks and other plumbing. With the Honeywell single use water leak alarm you can establish a water damage defense without having to buy expensive tools and with no installation required. If water is detected, the water leak alarm will sound an alarm for up to 24 hours (depends on battery life). You'll be able to take action and avert disaster. Never be surprised by a leak or flood again! The Honeywell RWD14 Single Use Water Leak Alarm automatically goes off when water comes into contact with it allowing you to respond to leaks and floods quickly and prevent disastrous damage caused by unknown water exposure.