Dragino DR-PH01 PH Water Quality Sensor

The Dragino DR-PH01 is a rugged water pH probe designed to connect to Dragino WQS-LB or WQS-NB water quality nodes. pH is one of the most fundamental water quality parameters because it directly affects disinfection performance, dosing control, biological activity, and corrosion behavior. In real monitoring systems, pH is often paired with conductivity, ORP, dissolved oxygen, and turbidity to provide a clearer picture of what’s happening at a site.

Common industries and real-world use cases:

Drinking water & swimming pools: Maintaining a stable pH for consistent water treatment. In pools, correct pH helps ensure disinfection effectiveness and improves user comfort.

Wastewater treatment: Process monitoring across treatment stages and early detection of abnormal inflows that can shift pH quickly.

Aquaculture & aquariums: pH as a core stability metric for healthy water conditions and reduced stress on fish and livestock.

Industrial water circuits: Supporting chemical dosing control, process stability, and corrosion-related monitoring in cooling and process water systems.

Technically, the DR-PH01 measures pH 0 to 14 with 0.01 pH resolution and ±0.15 pH accuracy. It features automatic temperature compensation and also measures temperature from 0 to 60 °C, helping keep readings meaningful in changing conditions. The reference electrode uses a double salt bridge design, aimed at stable performance in long-term deployments. With IP68 sealing, 0.6 MPa pressure resistance, and a 5 m cable, it’s built for direct in-water installation.