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Sound speed sensor / for measuring concentration - SPRn 4215, STRn 4215
The STRn 4215 from Anton Paar are sound velocity sensors that are designed for hostile and corrosive liquids. These devices constantly monitor the product quality of liquids while on the operation. Relying on the sensor, the concentration is either measured, indicated and processed by evaluation unit or measured inside the sensor and supplied as a 4-20 mA signal.