Hanna Instruments HI-98394 GPS Multiparameter Portable pH, EC, ISE, Turbidity, DO Meter with Autonomously Logging Probe
HI-98394 GPS Multiparameter Portable pH, EC, ISE, Turbidity, DO Meter with Autonomously Logging Probe
HI-98394 is a portable logging multiparameter system (meter and autonomously logging probe) that monitors up to 14 different water quality parameters (7 measured and 7 calculated) such as pH, ORP, turbidity, dissolved oxygen, conductivity, chloride, nitrate, ammonium and temperature. Each parameter is fully configurable.
The HI-98394 is designed to withstand harsh environmental conditions and is ideal for field measurements and all the applications listed above. Each meter comes with a protective rubber boot and meets IP67 standard (30 minutes immersion at 1 meter depth). The multi-sensor probe is totally sealed against water and dust. Plus, it meets IP68 standard (continuous immersion in water).
HI-98394 has a graphic, backlit display that automatically sizes the digits to fit the screen with on screen graphing capability. HI-98394 features an internal 12-channel GPS receiver/antenna module that guarantees a position accuracy of 10 m (30 ft). GPS information can be transferred to a PC and can be viewed using GPS mapping software.
Clicking on visited locations, using a mapping software, displays the measurement information. The GPS coordinates are shown on the LCD together with up to 10 measurement parameters recorded with logged data.
A 3-bar antenna indicator, in the bottom right corner of the LCD, indicates GPS signal strength. The multi-sensor probe features an internal temperature sensor and a removable protective shield.
The HI-98394 system is easy to setup and use. The built-in tutorial mode guides users step-by-step through sensor preparation, installation, maintenance, and calibration processes.
The meter can log data that can be easily downloaded as a .csv file (or graph) to a type-C, USB flash drive.
Rugged Custom Carrying Case
The HI-98394 meter, probe, and all accessories is supplied in a rugged carrying case designed to provide years of use. The inside compartment of the carrying case is thermoformed to securely hold and protect all components.
What's included:
- HI-7698394/4 Autonomously logging multi-sensor probe
- HI-76983948 Atmospheric pressure box
- Probe connector protection cover
- 1.5V AA alkaline batteries (8 pcs.)
- HI-7698194-1 pH / ORP sensor (pre-installed on the probe)
- HI-7698594-4 EC / Turbidity sensor (pre-installed on the probe)
- HI-7698194-2 Galvanic DO sensor (pre-installed on the probe)
- HI-7698296 Long protective probe shield
- HI-7698293 Long calibration beaker
- HI-9828-20 Quick calibration standard solution (230 mL)
- HI-9829-16 0 FNU calibration solution (230 mL)
- HI-9829-17 20 FNU calibration solution (230 mL)
- HI-9829-18 200 FNU calibration solution (230 mL)
- HI-710036 Protective rubber boot (fitted on meter)
- HI-920019 USB-C to USB-C cable
- Probe maintenance kit includes: DO galvanic membranes, o-rings for DO sensor, o-rings for probe, electrolyte solution for DO sensor, 5 mL syringe, scouring pad, sensor-socket protection*, hex key, small brush, sachet with silicone grease
- Instrument quality certificate
- Sensors and probe quality certificates
- Quick reference with QR code for manual download
Warranty
- 2 Years meter
- 6 months sensors and probes
About the probe and sensors
Autonomously Logging Probe
Storage of up to 140,000 individual samples or 35,000 complete sample data sets with date and time stamp thus permitting up to a 70 day deployment with all channels logging at 10 minute intervals.
Pre-installed Sensors
Supplied with pre-installed pH/ORP, EC/Turbidity and DO sensors.
Quick Sensor Replacement
Sensor replacement is quick and easy with field replaceable, screw type connectors and colour-coded bodies.
Auto-Sensor Recognition
This meter automatically recognises sensors.
Temperature Sensor
The probe incorporates a temperature sensor for temperature compensation of all parameters. Accurate temperature reading in degrees Celsius, Fahrenheit and kelvin are displayed.
Field Ready
For field calibration, our quick calibration solution allows standardization of pH and conductivity with one calibration solution.
Quick Calibration
Simply screw the calibration beaker filled with Quick Calibration solution onto the probe, select “Quick calibration” from the menu and press OK. Individual calibration may also be performed using multiple calibration points.
Specifications
| pH / mV | |
|---|---|
| Range | 0.00 to 14.00 pH / ±600.0 mV |
| Resolution | 0.01 pH / 0.1 mV |
| Accuracy | ±0.05 pH / ±3.0 mV |
| Calibration | One-point Quick Calibration using HI-9828-20; up to three points using pH 4.01, 6.86, 7.01, 9.18, 10.01) standard buffers or one custom buffer |
| ORP | |
| Range | ±2000.0 mV |
| Resolution | 0.1 mV |
| Accuracy (evaluated with a calibrated system at ambient temperature) | ±10 mV |
| Calibration | Automatic at one custom point (relative mV) |
| EC | |
| Range | 0 to 200 mS/cm0 to 400 mS/cm (absolute) |
| Resolution | manual: 1 μS/cm; 0.001 mS/cm; 0.01 mS/cm; 0.1 mS/cm; 1 mS/cm; automatic: 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; automatic (mS/cm): 0.001 mS/cm from 0.000 to 9.999 mS/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 |
| Accuracy (evaluated with a calibrated system at ambient temperature) | ±1% of reading or ±1 μS/cm whichever is greater |
| Calibration | One-point Quick Calibration using HI-9828-20; One 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) |
| 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); automatic: 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); automatic ppt (g/L): 0.001 ppt (g/L) from 0.000 to 9.999 ppt (g/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) |
| Accuracy | ±1% of reading or ±1 ppm (mg/L) whichever is greater |
| 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 depending on resistivity reading |
| Resolution | 1 Ω•cm; 0.1 k Ω•cm; 0.0001 M Ω•cm |
| Calibration | Based on conductivity or salinity calibration |
| Salinity | |
| Range | 0.00 to 70.00 PSU |
| Resolution | 0.01 PSU |
| Accuracy | ±2% of reading or ±0.01 PSU whichever is greater |
| Calibration | One point, using a custom solution |
| Seawater Sigma | |
| Range | 0.0 to 50.0 σt, σ₀, σ₁₅ |
| Resolution | 0.1 σt, σ₀, σ₁₅ |
| Accuracy | ±1 σt, σ₀, σ₁₅ |
| Calibration | based on conductivity or salinity calibration |
| Turbidity | |
| Range | 0.0 to 99.9 FNU; 100 to 1000 FNU |
| Resolution | 0.1 FNU from 0.0 to 99.9 FNU1 FNU from 100 to 1000 FNU |
| Accuracy | ±0.3 FNU or ±2% of reading, whichever is greater |
| Calibration | Automatic up to 3 points at 0, 20 and 200 FNU or custom |
| Dissolved Oxygen | |
| Range | 0.0 to 500.0% saturation; 0.00 to 50.00 ppm (mg/L) |
| Resolution | 0.1% saturation; 0.01 ppm (mg/L) |
| Accuracy (evaluated with a calibrated system at ambient temperature) | ±1.5% of reading from 0.0-200.0% saturation;±5% of reading from 200.0-500.0 % saturation;±1.5% of reading from 0.00-20.00 mg/L;±5% of reading from 20.00-50.00 mg/L |
| Calibration | One point, quick calibration in water saturated air; One or two-point at 100% and 0%; One point using a custom solution, % saturation or mg/L |
| Pressure Compensation | Automatic: 450 to 850 mmHg |
| 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 |
| Resolution | 0.1 mm Hg; 0.01 in Hg; 0.1 mbar; 0.001 psi; 0.0001 atm; 0.01 kPa |
| Accuracy | ±3 mm Hg within ±15°C from calibration temperature |
| Calibration | automatic at one custom point |
| Temperature | |
| Range | -5.00 to 50.00°C; 23.00 to 122.00°F; 268.15 to 323.15K |
| Resolution | 0.01°C; 0.01°F; 0.01K |
| Accuracy | ±0.15°C; ±0.27°F; ±0.15K |
| Calibration | Automatic at one custom point |
| Ammonium-Nitrogen | |
| Range | 0.02 to 200.00 ppm Am (as NH4+-N) |
| Resolution | 0.01 ppm to 1.00 ppm; 0.1 ppm to 200.0 ppm |
| Accuracy | ±5% of reading or 2ppm whichever is greater |
| Calibration | 1 or 2 point, 10 ppm and 100 ppm |
| Chloride | |
| Range | 0.6 to 200.00 ppm Cl (as Cl- |
| Resolution | 0.01 ppm to 1 ppm; 0.1 ppm to 200.0 ppm |
| Accuracy | ±5% of reading or 2ppm whichever is greater |
| Calibration | 1 or 2 point, 10 ppm and 100 ppm |
| Nitrate-Nitrogen | |
| Range | 0.62 to 200.00 ppm N (as NO3--N) |
| Resolution | 0.01 ppm to 1 ppm; 0.1 ppm to 200 ppm |
| Accuracy | ±5% of reading or 2ppm whichever is greater |
| Calibration | 1 or 2 point, 10 ppm and 100 ppm |
| Additional Specifications | |
| Temperature Compensation | automatic from -5 to 50°C (23 to 122°F) 268.15 to 323.15K |
| Logging Memory | Probe only: 140,000 measurements (single parameter logged); 35,000 measurements (all parameters logged)meter and probe: interval logging 50,000 records total or log-on-demand (all parameters) 15,000 records |
| Logging Interval | one second to three hours |
| GPS | yes, 12 channel receiver |
| Connectivity | USB-C (HOST) functions – Mass storage host; USB-C (device) functions – Mass storage device |
| Protection Rating | IP67 |
| Environment | 0 to 50°C (32 to 122°F); RH 100% |
| Battery Type / Life | 1.5V AA alkaline batteries (4) |
| Battery Life | Approximately 40 hours with logging every 1 second, all parameters enabled and GPS on |
| Dimensions / Weight | 185 x 93 x 35.2 mm (7.3 x 3.6 x 1.4”) / 435g (13.3 oz.) |
| Probe Specification – HI-7698394 | |
| Sensor Inputs | 1 – pH, pH/ORP, ammonium ISE, Chloride ISE, or Nitrate ISE 2 – Dissolved Oxygen 3 – EC, EC/Turbidity |
| Sample Environment | Fresh, brackish, seawater |
| Waterproof Protection | IP68 |
| Operating Temperature | -5.0 to 50.0°C |
| Storage Temperature | -20.0 to 70.0°C |
| Maximum depth | 20m (66 feet) - reduced for ISE sensors |
| Dimensions (without cable) | 442mm; 46mm diameter |
| Weight (with sensors and batteries) | 775g |
| Cable specification | Multistrand-multiconductor shielded cable with internal strength member rated for 68kg (150lb) intermittent use |
| Wetted materials | Body – ABSThreads – NylonShield – ABS/316 SSTemperature Probe – 316 SSO-rings - EPDM |
| Sensor Specifications: | |
| HI-7698194-1 pH/ORP sensor | |
| Measurement type | pH, mV (pH/ORP) |
| Measurement range | 0.00 to 12.00 pH; ±600.0mV (pH); ±2000.0mV (ORP) |
| Temperature range | -5.0 to 50.0°C |
| Colour Code | Red |
| Materials | Glass tip (pH) and ORP (Platinum), Wick junction, PEI body, electrolyte gel and double reference |
| Maintenance solution | HI-70300 storage solution |
| Dimensions | 118 x 15mm |
| HI-7698594-4 EC/Turbidity sensor | |
| Measurement unit | µS/cm, mS/cm, FNU |
| Measurement range | 0 to 200.0 mS/cm0.0 to 400 mS/cm (absolute)0.0 to 1000 FNU |
| Temperature range | -5.0 to 50.0°C |
| Colour Code | Blue |
| Materials | Body: ABS/EPOXY; Electrodes – Stainless Steel (AISI 316) |
| Maintenance solution | None |
| Dimensions | 135 x 35mm |
| HI-7698194-2 DO sensor | |
| Measurement unit | DO (% saturation and concentration) |
| Measurement range | 0.0 to 500.0 %0.00 to 50.00 mg/L |
| Temperature range | -5 to 55˚C |
| Colour Code | White |
| Materials | Tip – cat/an: Ag/Zn; junction – membrane HDPE; Body - ABS |
| Maintenance solution | HI-7042S (DO electrolyte) |
| Dimensions | 99 x 17mm |
Frequently Asked Questions
Clear answers to help you choose the right water testing solution with confidence
Which brands of water testing kits do you supply?
Do you provide kits for both home and professional use?
Yes — whether you’re a pool or spa owner, aquarium keeper, utility company, or a university laboratory, we have the right solution for your needs.
Can I arrange servicing or calibration for my photometer?
Absolutely. We also provide servicing and calibration to keep your photometers accurate and reliable.
How quickly do you dispatch orders?
Orders placed before 2:30 pm (Monday–Friday) are dispatched the same day. We also ship on Saturdays for your convenience.
Which couriers do you use for delivery?
We deliver through UPS, DPD, and Royal Mail. You can also choose to upgrade to next-day delivery at checkout.
What is your return policy?
We accept returns within 14 days of delivery provided the items are unused, in their original packaging, and in resalable condition. Please contact our team before returning any items.
Can I place bulk or business orders?
Yes, we welcome bulk, trade, and institutional orders. For tailored pricing or large quantities, please get in touch with us directly.
How can I get help if I’m unsure which kit to buy?
You can call us at 📞 +44 (0)115888 2726 and our team will guide you in choosing the most suitable kit for your needs.