Hanna Instruments pH, EC, ORP & DO Meters, Photometers & Titrators

Hanna Instruments — Professional pH, EC, ORP, DO Meters, Photometers & Titrators

Hanna Instruments is a global leader in analytical instrumentation, trusted by laboratories, growers, aquaculture professionals, food producers, and water treatment specialists in over 60 countries. With more than 5,000 products spanning portable meters, benchtop instruments, photometers, titrators, and probes, Hanna delivers laboratory-grade accuracy in formats built for real-world field and production use.

Shop our complete selection of 316+ genuine Hanna Instruments products — including the full GroLine horticultural range, HI-series portable meters, multiparameter instruments, and consumables.

Hanna Instruments Product Categories

• pH Meters & Testers — Pocket pens, portable meters, and benchtop units with ATC for precise acidity/alkalinity measurement
• EC & TDS Meters — Electrical conductivity and total dissolved solids meters for hydroponics, water treatment, and food production
• ORP Meters — Oxidation-reduction potential meters for water treatment, sanitation, and aquaculture monitoring
• Dissolved Oxygen (DO) Meters — Optical and polarographic DO meters for aquaculture, environmental research, and wastewater
• Multiparameter Meters — Measure pH, EC, TDS, ORP, DO, and temperature simultaneously with a single instrument
• Photometers & Colorimeters — Measure chlorine, ammonia, phosphate, nitrate, iron, and 100+ other parameters with colorimetric accuracy
• Titrators & Mini-Titrators — Alkalinity, hardness, acidity, and chemical oxygen demand (COD) titration for lab and field
• Ion-Selective Electrodes (ISE) — Nitrate, fluoride, calcium, potassium, and other ion-specific probes for advanced water analysis
• Turbidity & TSS Meters — Portable and benchtop turbidity meters for drinking water, wastewater, and environmental compliance
• Probes, Electrodes & Replacement Parts — Genuine Hanna replacement probes, electrodes, and sensors for all HI-series instruments
• Calibration Solutions & Reagents — NIST-traceable buffers, calibration standards, and photometer reagent sachets

Hanna Instruments Sub-Brands & Series

• GroLine — Purpose-built pH, EC, and nutrient meters for hydroponics, greenhouse, and controlled-environment agriculture
• Wobbly Edge — Food-industry pH meters designed for meat, dairy, bread, and beverage production
• HI-Series Portable Meters — The core professional portable meter lineup covering all major water quality parameters
• Edge Series — Modular benchtop meters with interchangeable pH, EC, and DO modules

Who Uses Hanna Instruments

• Hydroponics & Controlled-Environment Agriculture (CEA) Growers
• Aquaculture & Aquaponics Facilities
• Municipal & Industrial Water Treatment Plants
• Food & Beverage Manufacturing & Quality Control Labs
• Environmental Monitoring & Field Research
• Swimming Pools, Spas & Water Parks
• Universities, Research Institutions & Teaching Labs
• Winemaking & Craft Brewing

All Hanna Instruments products sold at Get Ultimate Now are 100% genuine — factory-warranted and shipped direct. Browse by category or use the search to find your specific model or HI number.