The HORIBA LAQUA F-70 Series is the top of the LAQUA benchtop range, built around a full-color touch screen interface. Where a conventional benchtop meter buries setup and calibration behind key sequences and coded menus, the F-70 presents them on screen as plain guided steps — which shortens training time and cuts down on operator error in shared laboratories.

All models measure pH, ORP and ion concentration; the F-74 and DS-72 variants add conductivity, resistivity, salinity and TDS. Dual-channel models let you run two electrodes at once and read both parameters simultaneously on a single display.

Meter-only models

• F-72G (3200575120) — single channel pH, ORP and ion, with electrode stand
• F-73G (3200575123) — dual channel pH, ORP and ion, with electrode stand
• F-74G (3200575130) — dual channel pH, ORP, ion, conductivity, resistivity, salinity and TDS, with electrode stand

Complete kits

Each kit includes the meter, electrode stand, electrodes and calibration solutions.

• F-72A-S (3999960011) — single channel pH/ORP/ion, with 9615S-10D refillable glass pH electrode and #101-SU buffer set (pH 4.01, 7.00, 10.01 and 3.33 M KCl, 250 mL each)
• F-73A-S (3999960012) — dual channel pH/ORP/ion, with 9615S-10D electrode and #101-SU buffer set
• DS-72A-S (3999960013) — conductivity, resistivity, salinity and TDS, with 3552-10D glass conductivity electrode (K = 1.0) and #103-S standard set (84 and 1413 µS/cm, 12.88 and 111.9 mS/cm)
• F-74A-S (3999960014) — dual channel, full parameter set, with both the 9615S-10D pH and 3552-10D conductivity electrodes plus the #101-SU and #103-S solution sets

Applications

• Regulated and accredited laboratories where calibration records must be documented
• Ion-selective analysis of ammonium, nitrate, fluoride, sodium, potassium and calcium
• Multi-user and teaching laboratories where a guided interface reduces training burden
• Food, beverage, brewing, cosmetics and pharmaceutical quality control
• Water and wastewater treatment plant laboratory analysis
• Ultrapure water resistivity and process water monitoring
• Research work needing two parameters logged simultaneously

Documentation

• HORIBA water quality document library — brochures, manuals and quick guides

Electrodes, stands & accessories

FA-70L and FA-70S electrode stands, electrode arms, replacement pH, conductivity and ion electrodes, buffer and standard solutions, display protection sheets and printer accessories are all stocked — see the Horiba Parts & Accessories collection.

Browse all HORIBA instruments.