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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
Free Chlorine Sensor: SpiderTrac FR809-W
Continuous online monitoring
Fast response with stable accuracy
Online Dust Monitor
Combines monitoring core + display screen into one unit (no external LED required).
Door-mounted display shows real-time data, reducing costs and complexity.