Accuracy Specifications – ICU-20201 Ultrasonic ToF Sensor

By priyalakshmige… , 1 September 2025

Hi,

I’m currently evaluating the ICU-20201 ultrasonic Time-of-Flight sensor for a precision measurement application and would appreciate your support in clarifying its performance specifications.

Specifically, I’m looking for:

- The absolute accuracy of the sensor across its full measurement range (20 cm to 5 m)
- Any available data on repeatability, resolution, and standard deviation of measurements
- Environmental factors that may influence accuracy (e.g., temperature, surface reflectivity, ambient noise)

While the datasheet mentions “millimeter-level accuracy,” I couldn’t find a quantified specification. My application requires ≤5 mm accuracy at distances beyond 1 meter, so any detailed performance data or test results would be extremely helpful.

Thank you in advance for your support.

Regards,
Priya

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