HORIBA LaquaTwin D-75G Portable pH and Dissolved Oxygen Meter

The HORIBA D-75G is a portable multimeter that delivers pH, ORP, and dissolved oxygen measurements in one rugged enclosure. It is engineered for users requiring fast and reliable results in both field and laboratory environments—including water quality monitoring, wastewater treatment assessment, food and beverage production, and quality control applications.

The instrument provides pH measurement across the 0.00–14.00 range with ±0.01 pH ±1 digit accuracy; ORP measurement spans -2000 to 2000 mV. Dissolved oxygen measurement capability reaches 0.00–20.00 mg/L. A 5-point automatic/manual calibration option enables precise tuning with various standard buffer solutions. Temperature measurement (0.0–100.0°C) is supported by both automatic and manual compensation modes for enhanced accuracy.

With IP65 protection rating, the meter resists dust ingress and water splash—critical for reliable field operation. Its compact, portable design allows confident deployment outside the laboratory while maintaining laboratory-grade precision.

Technical Specifications

Applications

• Wastewater and drinking water quality control
• Rapid pH and DO measurement in field operations
• Quality assurance testing in food and beverage manufacturing
• Routine pH and dissolved oxygen measurement in laboratory settings