Portable pH Meter

The Bluetooth Pen Meter (DPH1+) is a pocket-sized, single-parameter Bluetooth-enabled pen tester measuring pH (-2.00 to 16.00) with ±0.01 pH ±1 digit accuracy and 0.1/0.01 resolution, and ORP (-1000.0 to +1000.0 mV) with ±0.1 percent of full scale ±1 digit accuracy, featuring replaceable combined electrode design (DPH1-S), multi-color backlit LCD display with reading stability indicator and automatic data lock, IP67 dustproof and waterproof rating, 0 to 60 degrees Celsius temperature measurement with ±0.2 degrees Celsius accuracy, automatic temperature compensation (ATC), 1 to 3 point automatic pH calibration with buffer recognition, support for CH, USA, and NIST standard buffer solutions, low battery indicator, user-configurable automatic shut-off and backlight duration, power-on self-diagnosis, and Bluetooth connectivity to a mobile application for two-way control, unlimited data storage, graphical display modes (graph, table, dial, general), graphic navigation operation guides, calibration reminders, measurement object ID management, timed storage, and high/low value warning settings—with complete field-ready kit including hard carrying case (28.0 × 23.0 × 8.2 centimeters), pH buffers (pH 4.00, 6.86, and 9.18, 30 mL each), 3 mol KCl electrode storage solution (10 mL), sample vials (30 mL × 3), four AAA batteries, and lanyard—ideal for water quality testing in clinical, pharmaceutical, and environmental applications .

For the dialysis technician, water quality specialist, clinical laboratory scientist, pharmaceutical QC chemist, and infection control officer, the Bluetooth Pen Meter (DPH1+) enables rapid, on-site pH and ORP measurement of biological fluids (serum, plasma, urine, cerebrospinal fluid) for metabolic assessment, purified water systems, dialysis fluids, and pharmaceutical process water—critical parameters for ensuring patient safety during renal replacement therapy, diagnosing acid-base disorders, verifying disinfection efficacy, and supporting drug manufacturing .

Key features include multi-color backlit display with reading stability indicator and automatic data lock when stable, power-on self-diagnosis function, low battery indicator, user-configurable automatic shut-off time and backlight duration, replaceable electrode design with removable protective cover for extended instrument life and easy cleaning, and compatibility with CH, USA, and NIST calibration standards . The IP67 dustproof and waterproof rating ensures reliable operation in harsh field environments, while the complete accessory kit provides field-ready capability .

The Bluetooth connectivity allows wireless connection to a mobile application with two-way control, unlimited data storage, graphical display modes (graph mode for trend analysis, table mode for data review, dial mode for analog-style reading, and general mode for basic measurement), graphic navigation operation guides for user training, calibration reminders to ensure instrument accuracy, measurement object ID management for traceability, timed storage for scheduled data logging, and high/low value warning settings for critical parameter monitoring .

The replaceable DPH1-S electrode is pre-installed in new meters and is available as a replacement part, extending instrument service life—electrode replacement rather than complete meter replacement. The electrode features a removable protective cover that prevents damage to the glass bulb and facilitates cleaning . The electrode must be stored with the pH sensing bulb moist using 3 mol KCl storage solution to prevent drying .

For the patient, accurate pH and ORP monitoring of water used in dialysis and pharmaceutical manufacturing ensures that critical treatment fluids meet stringent safety and quality standards—preventing potential harm from improperly treated water and supporting the production of safe, effective medications. Additionally, pH measurement of biological fluids supports early detection of metabolic disturbances, acid-base imbalances, and renal dysfunction—enabling timely clinical intervention.