
Water Quality Monitoring
Quick answerWater quality instruments measure what is dissolved in water, continuously. TDS and conductivity show RO and DM performance, pH and ORP control dosing and effluent quality, and online controllers combine readings with alarms and relay outputs. Filtsap supplies panel and field-mount instruments with sensors.





Online Water Quality Controllers
Multi-parameter controllers with alarms, relays and 4–20 mA outputs.
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FAQs
Why monitor ORP before an RO membrane?
A high ORP (above about 200–250 mV) signals residual chlorine, which damages polyamide RO membranes. An ORP meter can trip the plant or raise SMBS dosing.
Planning a filtration or water treatment project?
Send your requirement: a product, a spare or a complete plant. Our team will reply with a quote within 2 working hours.