1. This is a sensor module with an air pressure range of 0 40Kpa, which can be used as a water level and liquid level sensor. 2. It has a compact size of 19 x 18 mm, making it easy to install in various applications. 3. The module operates within a voltage range of 3.3 5V, providing flexibility in power supply options. 4. It is designed to accurately sense air pressure changes and convert them into useful signals for water level and liquid level monitoring. 5. With its reliable performance, this sensor module is suitable for a wide range of industries and applications requiring precise level sensing. Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement. Sold by-Minnanxin