Phone

+603-5621 5786

Business Hour

08:30 - 17:30

Hanna Instruments – HI98494 Multiparameter Bluetooth® portable pH/EC/OPDO Meter

The HI98494 is a rugged, professional-grade multiparameter portable meter designed to measure up to 12 water quality parameters including pH, ORP, EC, TDS, salinity, resistivity, optical dissolved oxygen (DO), temperature, and atmospheric pressure. With Bluetooth® connectivity, automatic interval logging of up to 50,000 records, and dual power operation (Li-ion + AA batteries), this meter ensures reliable performance in field conditions. Its digital multi-sensor probe with Quick Connect DIN allows fast sensor replacement and automatic recognition. Built with an IP67-rated housing, the HI98494 delivers advanced performance for environmental, wastewater, aquaculture, and industrial monitoring.

  • Measures Up to 12 Parameters with Digital Multi-Sensor Probe
  • Bluetooth® Connectivity + USB-C Data Transfer & Charging
  • Optical Dissolved Oxygen (DO) Sensor with Smart RFID Cap
  • IP67 Waterproof & Dual Power Source (Li-ion + AA Batteries)

Description

The HI98494 is engineered for comprehensive water analysis with high accuracy across multiple parameters. It measures pH (± 0.02 pH accuracy), ORP (± 2000 mV), EC (up to 200 mS/cm), TDS (up to 400,000 ppm), salinity (PSU and seawater sigma), resistivity, optical dissolved oxygen (0–50 mg/L), atmospheric pressure, and temperature. Featuring Quick Calibration options for pH, EC, and DO, along with full multi-point standard calibration, the meter supports GLP data logging with date and time stamps for full traceability. Logging options include automatic interval logging (up to 50,000 records) and log-on-demand (20,000 records).

Built for demanding fieldwork, the HI98494 features a digital multiparameter probe (HI7698494) with field-replaceable, color-coded screw-type sensors for pH/ORP, EC/TDS/Salinity/Resistivity, and optical DO. The optical DO sensor uses a Smart Cap with RFID tracking, alerting users when replacement is needed. Data transfer and charging are simplified with a USB Type-C port, while wireless connection via Bluetooth® to the Hanna Lab App enables real-time graphing, GLP review, sorting, and data sharing. The IP67-rated housing protects against dust and water ingress, ensuring durability in harsh environments

Features

  • Up to 12 Parameters Measured – pH, ORP, EC, TDS, Salinity (PSU & Sigma), Resistivity, Optical DO, Temperature, and Atmospheric Pressure.
  • Advanced Data Logging – 50,000 interval logging records and 20,000 log-on-demand records with selectable intervals (1 second to 3 hours).
  • Dual Power Source – Automatically switches between built-in Li-ion battery and AA alkaline batteries (minimum 200 hours operation).
  • Optical Dissolved Oxygen Sensor – Luminescent technology with Smart Cap RFID tracking for maintenance alerts.
  • Bluetooth® Connectivity – Wirelessly connect to smart devices using the Hanna Lab App for graphing, GLP review, and data sharing.
  • USB Type-C Port – Convenient charging and mass storage data transfer to USB drives or computers.
  • Quick Calibration – Single-point quick calibration for pH, EC, and DO; multi-point standard calibration options available.
  • GLP Data Logging – Calibration data stored with time and date stamp for full traceability.
  • Digital Multiparameter Probe – HI7698494 probe with automatic sensor recognition and quick connect DIN system.
  • Field Replaceable Sensors – Color-coded screw-type pH/ORP, EC, and optical DO sensors for easy maintenance.
  • IP67 Waterproof Housing – Dustproof and protected against water immersion for harsh field conditions.
  • Backlit Dot Matrix Display – Clear viewing in low-light environments.

Specifications

SKU HI98494-web
Product Name Multiparameter Bluetooth® Portable pH/EC/OPDO Meter – HI98494
Quote Required Yes
pH Range 0.00 to 14.00 pH*
pH Resolution 0.01 pH
pH Accuracy ± 0.02 pH
pH Calibration One point (HI9828-25 Quick calibration solution); up to three points using five standard buffers (pH 4.01, 6.86, 7.01, 9.18, 10.01) and one custom buffer
pH Temperature Compensation Automatic from -5 to 50 °C (23 to 122 °F)
ORP Range ± 2000.0 mV
ORP Resolution 0.1 mV
ORP Accuracy ± 1.0 mV
ORP Calibration One point (relative mV)
mV Range (pH in mV) ± 600.0 mV
mV Resolution 0.1 mV
mV Accuracy ± 0.5 mV (Relative Offset)
EC Range 0 to 200 mS/cm (absolute EC up to 400 mS/cm)
EC Resolution Auto-ranging
EC Accuracy ± 1% of reading or ± 1 μS/cm, whichever is greater
EC Calibration One point (HI9828-25 Quick calibration solution); one point using 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)
TDS Resolution Manual
TDS Accuracy ± 1% of reading or ± 1 ppm (mg/L), whichever is greater
TDS Calibration Based on conductivity calibration
EC/TDS Temperature Compensation Automatic from -5 to 50 °C (23 to 122 °F)
Temperature Correction Coefficient 0.00 to 6.00 %/°C
EC to TDS Conversion Factor 0.00 to 1.00
Reference Temperature 20 °C or 25 °C
Cell Type Potentiometric four pole
Multi-range Measurement Modes Yes
Salinity (PSU) Range 0.00 to 70.00 PSU
Salinity (PSU) Resolution 0.01 PSU
Salinity (PSU) Accuracy ± 2% of reading or ± 0.01 PSU, whichever is greater
Salinity (PSU) Calibration One point using custom solution
Salinity (Seawater Sigma) Range 0.0 to 50.0 σt, σ0, σ15
Salinity (Seawater Sigma) Resolution 0.1 σt, σ0, σ15
Salinity (Seawater Sigma) Accuracy ± 1.0 σt, σ0, σ15
Salinity (Seawater Sigma) Calibration Based on conductivity or salinity calibration
Resistivity Range 0 to 999999 Ω·cm
Resistivity Resolution 1 Ω·cm; 0.1 kΩ·cm; 0.0001 MΩ·cm
Resistivity Calibration Based on conductivity or salinity calibration
Dissolved Oxygen Measurement Type Optical luminescent technology
Dissolved Oxygen Range 0.00 to 50.00 mg/L; 0.0 to 500.0 % saturation
Dissolved Oxygen Resolution 0.01 mg/L; 0.1 % saturation
Dissolved Oxygen Accuracy ± 1.5% of reading ± 0.01 mg/L (0–20 mg/L); ± 5% of reading (20–50 mg/L); ± 1.5% ±0.1% (0–200%); ± 5% (200–500%)
Dissolved Oxygen Calibration Quick calibration in water-saturated air; one or two points (100% and 0%); or custom solution
Dissolved Oxygen Temperature Compensation Automatic from -5 to 50 °C (23 to 122 °F)
Altitude Compensation Automatic
Temperature Range -5.00 to 50.00 °C; 23.00 to 122.00 °F; 268.15 to 323.15 K
Temperature Resolution 0.01 °C; 0.01 °F; 0.01 K
Temperature Accuracy ± 0.15 °C; ± 0.27 °F; ± 0.15 K
Temperature Calibration One point using custom value
Logging Type Interval and log on demand
Logging Memory 50,000 records (interval); 20,000 records (log-on-demand)
Logging Interval 1 second to 3 hours
Connectivity Bluetooth®, USB-C (mass-storage host/device)
Automatic Shut-Off 5, 10, 15, 20, 30, 60 minutes or disabled
GLP Yes
Display Backlit dot matrix
Battery Type / Life Minimum 200 hours (AA batteries); Minimum 50 hours (Li-ion battery)
IP Protection IP67
Environment 0 to 50 °C (32 to 122 °F); RH 100%
Dimensions 185 x 93 x 35.2 mm (7.3 x 3.6 x 1.4”)
Weight 435 g (13.3 oz)
Atmospheric Pressure Range 450.0 to 850.0 mmHg; 17.72 to 33.46 inHg; 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 mmHg; 0.01 inHg; 0.1 mbar; 0.001 psi; 0.0001 atm; 0.01 kPa
Atmospheric Pressure Accuracy ±3.0 mmHg within ±15°C from calibration temperature
Atmospheric Pressure Calibration One point using custom value
Ordering Information Supplied with HI7698494 multi-sensor probe, HI7698194-1 pH/ORP sensor,
HI7698194-3 EC/TDS/Resistivity/Salinity sensor, HI7698494-5 optical DO sensor,
HI764113-1 DO smart cap, calibration beaker, quick calibration solution,
zero oxygen solution set, maintenance kit, USB cable, AA batteries (4),
quality certificates, and instruction manual.

Ready to Transform Your Business? Contact Us Today

Categories

Request a Quote or Further Information

Please fill in the request form below and one of our engineers will contact you to discuss your system requirements and if we can help, our typical response time is within 1 – 3 working day.