Hanna 98194 Multiparameter Meter

The Hanna HI98194 is a professional-grade, waterproof multiparameter water quality meter designed for comprehensive environmental monitoring and field water quality analysis. This rugged handheld instrument measures up to 12 essential water quality parameters — including pH, ORP, electrical conductivity (EC), total dissolved solids (TDS), salinity, dissolved oxygen (DO), pressure, and temperature — making it a versatile solution for environmental, industrial, and regulatory testing. Specifications pH Range 0.00 to 14.00 pH pH Resolution 0.01 pH pH Accuracy ±0.02 pH pH Calibration automatic one, two, or three points with automatic recognition of five standard buffers (pH 4.01, 6.86, 7.01, 9.18, 10.01) or one custom buffer mV Range ±600.0 mV mV Resolution 0.1 mV mV Accuracy ±0.5 mV ORP Range ±2000.0 mV ORP Resolution 0.1 mV ORP Accuracy ±1.0 mV ORP Calibration automatic at one custom point (relative mV) EC Range 0 to 200 mS/cm (absolute EC up to 400 mS/cm) EC Resolution auto-ranging: 1 µS/cm from 0 to 9999 µS/cm; 0.01 mS/cm from 10.00 to 99.99 mS/cm; 0.1 mS/cm from 100.0 to 400.0 mS/cm; auto-ranging (fixed mS/cm): 0.001 mS/cm from 0.000 to 9.999 mS/cm; 0.01 from 100.0 to 400.0 mS/cm ; manual: 1 µS/cm; 0.001 mS/cm; 0.01 EC Accuracy ±1% of reading or ±1 µS/cm whichever is greater EC Calibration automatic single point, with six standard solutions (84 µS/cm, 1413 µS/cm, 5.00 mS/cm, 12.88 mS/cm, 80.0 mS/cm, 111.8 mS/cm) or custom point TDS Range 0 to 400000 ppm (mg/L); (the maximum value depends on the TDS factor) TDS Resolution manual: 1 ppm (mg/L); 0.001 ppt (g/L); 0.01 ppt (g/L); 0.1 ppt (g/L); 1 ppt (g/L); auto-ranging: 1 ppm (mg/L) from 0 to 9999 ppm (mg/L); 0.01 ppt (g/L) from 10.00 to 99.99 ppt (g/L); 0.1 ppt (g/L) from 100.0 to 400.0 ppt (g/L); auto-ranging (fixed ppt): TDS Accuracy ±1% of reading or ±1 ppm (mg/L), whichever is greater TDS Calibration based on conductivity or salinity calibration Resistivity Range 0 to 999999 Ω•cm; 0 to 1000.0 kΩ•cm; 0 to 1.0000 MΩ•cm Resistivity Resolution dependent on resistivity reading Resistivity Calibration based on conductivity calibration Salinity Range 0.00 to 70.00 PSU Salinity Resolution 0.01 PSU Salinity Accuracy ±2% of reading or ±0.01 PSU whichever is greater Salinity Calibration based on conductivity calibration Seawater σ Range 0.0 to 50.0 σt, σ₀, σ₁₅ Seawater σ Resolution 0.1 σt, σ₀, σ₁₅ Seawater σ Accuracy ±1 σt, σ₀, σ₁₅ Seawater σ Calibration based on conductivity or salinity calibration DO Range 0.0 to 500.0%; 0.00 to 50.00 ppm (mg/L) DO Resolution 0.1%; 0.01 ppm (mg/L) DO Accuracy 0.0 to 300.0% saturation: ±1.5% of reading or ±1.0% saturation whichever is greater, 0.00 to 30.00 ppm (mg/L): ±1.5% of reading or ±0.10 ppm (mg/L), whichever is greater, 30.00 ppm (mg/L) to 50.00 ppm (mg/L): ±3% of reading, 300.0 to 500.0% saturation: ±3% of reading DO Calibration automatic one or two points at 0 and 100% or one custom point Atmospheric Pressure Range 450 to 850 mm Hg; 17.72 to 33.46 in Hg; 600.0 to 1133.2 mbar; 8.702 to 16.436 psi; 0.5921 to 1.1184 atm; 60.00 to 113.32 kPa Atmospheric Pressure Resolution 0.1 mm Hg; 0.01 in Hg; 0.1 mbar; 0.001 psi; 0.0001 atm; 0.01 kPa Atmospheric Pressure Accuracy ±3 mm Hg within ±15°C from the temperature during calibration Atmospheric Pressure Calibration automatic at one custom point Temperature Range -5.00 to 55.00 °C, 23.00 to 131.00 °F, 268.15 to 328.15 K Temperature Resolution 0.01 K, 0.01 °C, 0.01 °F Temperature Accuracy ±0.15 °C; ±0.27 °F; ±0.15 K Temperature Calibration automatic at one custom point Temperature Compensation automatic from -5 to 55 °C (23 to 131 °F) Logging Memory 45,000 records (continuous logging or log-on-demand of all parameters) Logging Interval one second to three hours PC Connectivity USB to PC with HI9298194 Hanna software installed Battery Type/Life 1.5V AA batteries (4) / approximately 360 hours of continuous use without backlight (50 hours with backlight) Environment 0 to 50°C (32 to 122°F); RH 100% (IP67) Dimensions 185 x 93 x 35.2 mm (7.3 x 3.6 x 1.4”) Weight 400 g (14.2 oz.)