Features: 24/7 water leak detector with adjustable sensitivity instantly alerts users to pipe bursts, overflows risks, or appliance leaks through its battery less, low power design (9V battery not included). Features customizable wire length (user adjustable placement) and probe controlled water levels detection, allowing precise overflows alerts when rotated clockwise or quiet monitoring for moisture when rotated counterclockwise. Ideal for homeowners, property managers, and renters needing reliabled basement, bathroom, or kitchen flood protective near water heaters, washing machines, or under sinks. Perfect for monitoring bathtub overflows during filling, detecting pipe leaks behind appliances, or preventing basement flooding from heavy rainfall accumulation. Engineered with plastic construction, this flood alarm sensors combines energy efficient operations with flexible placement option for whole water damage prevention. Specifications: Product name: Water leakage alarm Component: ABS Product size: 80x80x40mm/3.14x3.14x1.57inch Battery: 9Vx1 (battery not included) Alarm: 120dB Detection line length: 125cm Package Includes: 1pcs Water Leak Detector Flood Alarm(without battery) note: 1.Please allow 1-2cm errors due to manual measurement, make sure that you donot mind befores you order. 2.Due to the differences between different monitors, the picture may not reflect the actual color. Thanks for your understandings.