Features: Ensure safety of your environment with the Aquariums Water Level Alarm, provide real time alerts for high and low water level in your FishTank. Crafted from ABS plastic and electronic component, this alarm features a sensitive sense that quickly responds to changes, preventing potential issue caused by improper water level. Suitable for Aquariums enthusiasts, pet owners, and hobbyists who prioritize maintaining water conditions for their fish and plant. Wide Application: Suitable for Aquariums fishtank water level monitoring, monitoring Aquariums water level, sump water level, and other applications. Please note: No diving, no getting wet. The alarm can not be used for diving. Specifications: Component:ABS Package Size: Approx.12x23cm/4.72x9.06inch Quantity: 1 Pc Package Includes: 1 Pc Water Level Detectors note: 1.Please allow 1-2cm errors due to manual measurement, note that you donot mind before order. 2.Due to the differences between different monitors, the picture may not reflect the actual color.