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Residual Chlorine Sensor: SpiderTrac FR809-Z
Capable of measuring COD, turbidity, and temperature
Equipped with a cleaning brush to prevent biological adhesion
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DO Sensor: SpiderTrac D807-Z
Digital sensor with RS485 output, supporting MODBUS
Membrane-free, electrolyte-free, interference-free, and requires minimal calibration
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Free Chlorine Sensor: SpiderTrac FR809-W
Continuous online monitoring
Fast response with stable accuracy
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DO Sensor: SpiderTrac D807-W
Digital sensor with RS485 output, supporting MODBUS Membrane-free.
Membrane-free, electrolyte-free, interference-free, and requires minimal calibration
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