Wholesale Water Hardness Probe Wholesaler & Suppliers

An Ion-Selective Electrode (ISE) water hardness probe measures the electrochemical potential generated across a selective ionophore membrane directly in real-time, providing continuous continuous response without consumable reagents, pump tubing, or waste disposal. A colorimetric titration analyzer draws discrete periodic water batches, mixes chemical buffer and EDTA/indicator reagents, and optically titrates the sample. ISE probes are suited for real-time process control and closed-loop dosing valves, whereas wet-chemistry analyzers are suited for low-frequency validation where reagents can be restocked on a monthly schedule.

Under typical clean-water operating conditions (pH 6.5–8.5, temperature <40°C, zero oil/heavy abrasives), our industrial solid-state ISE hardness probes deliver an average continuous lifespan of 12 to 24 months. Standard calibration verification using two-point certified standards ($CaCO_3$ equivalent) is recommended once every 30 to 60 days. In high-fouling or brackish water installations, integrating an automatic pneumatic or ultrasonic cleaning jacket extends maintenance intervals up to 90 days.

Yes. Shanghai BOQU manufactures both divalent total hardness probes (which react to total $Ca^{2+}$ and $Mg^{2+}$ combined with an empirical selectivity coefficient) and mono-selective calcium ion probes ($Ca^{2+}$ specific ISE). By utilizing our dual-channel online digital controller (such as the DCA130 or MPG-6099Plus series), engineering teams can measure total hardness and pure calcium simultaneously, and the microprocessor computes magnesium hardness by subtraction according to standard stoichiometric ratios.

For standard catalog items, we offer a low trial MOQ of 1 to 5 units to support engineering evaluation and field testing. For custom OEM/ODM configurations (custom branding, private laser engraving, modified cable jacket polymers, and bespoke Modbus register protocols), the typical MOQ is 20 units. Standard factory stock dispatches within 3 business days via DHL/FedEx/air freight; custom volume batches of 100–500 units typically ship within 12–15 working days directly from our Shanghai manufacturing plants.

Yes. Divalent ion exchange at the membrane surface is influenced by boundary layer thickness and thermodynamic temperature. We recommend installing the probe in a dedicated bypass flow-through cell at a constant velocity between 10 and 25 cm/s. All BOQU smart hardness probes incorporate a built-in high-precision PT1000 temperature sensor, and the internal microprocessor automatically applies Nernst temperature compensation algorithms to convert raw values to standard 25°C equivalent values.

Our instruments support standard industrial communication interfaces: standard two-wire galvanically isolated 4-20mA analog current loops (with optional HART protocol), dual high-capacity SPDT relay contacts for high/low alarm triggers and pump activation, and standard RS-485 Modbus RTU digital communication. Modbus enables direct multidrop connection of up to 32 sensors on a single twisted-pair cable directly to Siemens, Allen-Bradley, Schneider, or Mitsubishi PLCs.