Multiparameter Water Quality Meter

Measurement Parameters
Temperature: −5.00 to 55.00 °C | 23.00 to 131.00 °F | 268.15 to 328.15 K

pH: 0.00 to 14.00 pH | ±600 mV

ORP: ±2000 mV

Dissolved Oxygen:
0.0 to 500.0 %
0.00 to 50.00 mg/L

Conductivity (EC): 0.000 to 200.000 mS/cm (actual EC up to 400 mS/cm)

Resistivity: up to 1.0000 MΩ·cm

TDS: up to 400,000 mg/L (ppm)

Salinity: 0.00 to 70.00 PSU

Seawater Specific Gravity: 0.0 to 50.0 σt / σ0 / σ15

Atmospheric Pressure: 450 to 850 mmHg

Accuracy & Resolution
Temperature Accuracy: ±0.15 °C
pH Accuracy: ±0.02 pH
ORP Accuracy: ±1.0 mV
DO Accuracy:
±1.5 % of reading (0–300 %)
±3 % of reading (300–500 %)
Conductivity & TDS Accuracy: ±1 % of reading
Salinity Accuracy: ±2 % of reading
High Resolution: up to 0.01 units depending on parameter

Calibration
Temperature: Automatic, 1 custom point
pH: Automatic 1–3 points with 5 standard buffers or 1 custom buffer
ORP: Automatic, 1 custom point
Dissolved Oxygen: Automatic 1 or 2 points (0 %, 100 %)
Conductivity: Automatic 1-point with 6 memorized standards or custom
Salinity / TDS / Resistivity: Based on conductivity calibration

Data Logging & Interface
Memory: Up to 60,000 logged samples (13 parameters per sample)
Logging Interval: 1 second to 3 hours
PC Connection: USB (HI 92000 software)

Environmental & Protection
Operating Temperature: 0 to 50 °C
Humidity: Up to 100 % RH
Waterproof Rating: Meter IP67 | Probe IP68

Power Supply
Batteries:
4 × 1.5 V alkaline C cells (≈150 hours)
4 × 1.2 V rechargeable C cells (≈70 hours)

Physical Specifications
Meter Size: 221 × 115 × 55 mm
Probe Size: 270 mm length × 46 mm diameter
Weight:
Meter: 750 g
Probe: 750 g