High-precision measurement: Our 40Khz 10M Waterproof Capactive Distance Proximity Ran Ultrasonic Transmitter Sewer Water Level Ultrasonic Sensor Module is designed to provide accurate and reliable distance measurements Wide ran of applications: Whether you need to measure the water level in a sewer system or detect objects in proximity, our Ultrasonic Transmitter Sensor Module is versatile enough to handle various tasks Waterproof design: Built to withstand harsh environments, our Ultrasonic Sensor Module features a waterproof construction that ensures reliable performance even in wet conditions Materials: We use a mixture of good materials in the production of our Ultrasonic Transmitter Sensor Module, ensuring durability and lonvity