Title: Radar vs. Ultrasonic Level Transmitters: How to Choose?

Radar and ultrasonic level transmitters are two leading technologies for industrial level measurement. Here’s a comparison to guide your selection.

1. Measurement Principle

• Radar: Uses electromagnetic waves, ideal for vacuum/high-pressure/vapor environments.

• Ultrasonic: Relies on sound waves, sensitive to temperature/humidity.

2. Accuracy & Reliability

• Radar offers higher accuracy (±1mm vs. ultrasonic’s ±0.25% FS).

• Radar performs better in foam/dust; ultrasonic may falter.

3. Media Compatibility

• Radar works with low-dielectric liquids (e.g., LPG).

• Ultrasonic requires good sound reflection (e.g., clean water).

4. Cost
Ultrasonic is cheaper upfront, but radar has lower long-term TCO.