Keep your home protected with this battery-operated water alarm from First Alert. The FIRST ALERT Water Alarm - Damage Protection WA100 is designed to detect water damage and alert you to any potential threats. With its white color and sleek design, it will blend seamlessly into any home décor. This water detector runs on a 9V battery, which is included with purchase. It is manufactured by First Alert/Brk Brands Inc and has a model number of WA100. The alarm is perfect for those who want to protect their home from water damage and has no California Prop 65 warning. Get peace of mind knowing your home is safe from any water-related threats.