Ultrasonic Distance Sensing Technology's Measuring Range

Ultrasonic distance sensors, also known as displacement sensors, are a type of sensor used to detect the distance between the sensor and an object to perform a predetermined function, and they have found extensive applications. These sensors utilize the principle of ultrasonic echo ranging and employ time-of-flight measurement technology to detect the distance between the sensor and the target object. They feature small-angle, small-blind zone ultrasonic sensors, offering advantages such as accurate measurement, non-contact, waterproof, corrosion-resistant, and low cost.

We commonly use ultrasonic distance sensors with the following frequencies, but how far can they actually measure? Here are a few common examples for you.

40kHz, 16mm Diameter Open Type Ultrasonic Transducer: Range 5-8 Meters

40KHz, 16mm Diameter Waterproof Ultrasonic Transducer: Range of 2-5 Meters

40kHz Diameter > 50mm Waterproof Ultrasonic Transducer: Range 8-10 Meters

25kHz Diameter > 50mm Waterproof Ultrasonic Transducer: Range 10-30 Meters