BM25S4221-1

Water Turbidity Detection Digital Module

General Information

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The BM25S4221-1 is a digital output photoelectric water turbidity detection module, which includes an IR emission diode, a photoelectric diode and a high-accuracy NTC. Based on the principle of transmission method, turbidity algorithm and temperature compensation algorithm, high-accuracy turbidity measurement can be implemented. Users can use the UART interface to obtain the turbidity measurement result. The module has been calibrated before delivery, which has high accuracy and low power consumption characteristics.

 

Feature Details

Turbidity measurement features
  • Measurement range: 0NTU~1000NTU
  • Resolution: 1NTU
  • Accuracy:
  • – ±50NTU @ 0NTU~800NTU
  • – ±75NTU @ 800NTU~1000NTU
Temperature measurement features
  • Maximum measurement range: 0℃~85℃
  • Recommended measurement range: 5℃~70℃
  • Resolution: 0.1℃
  • Accuracy: ±1℃
Operating voltage

5V±5%

Operating current

Average operating current <12mA @ 5V

Communication interface

UART 9600bps, 8-N-1

Integrates temperature compensationAvailable
Factory calibrationAvailable

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