| pH-mV range | 0.00~14.00pH/±600.0mV |
| pH-mV resolution | 0.01PH/0.1mV |
| pH-mV Measurement Accuracy | ±0.02pH/±0.5mV |
| pH-mV calibrated mode | Up to three points of automatic calibrate recognition and one custom calibrate, built-in five standard calibrate points 4.01, 6.86, 7.01, 9.18, 10.01 pH parameters |
| ORP Measurement range | ±2000mV |
| ORP resolution | 0.1mV |
| Measurement Accuracy of ORP | ±1.0mV |
| ORP calibrated mode | Single point custom calibrated (relative mV) |
| Conductivity range | 0~200mS/cm (Absolute Conductivity Detector up~ 400mS/cm) |
| EC resolution | 1μS/cm、0.001ms/cm、0.01mS/cm、0.1mS/cm、1mS/cm |
| Measurement Accuracy of conductivity | Readings +/- 1% or +/- 1mg/L (ppm), whichever is the largest |
| Conductivity calibrated mode | Automatic recognition of single point calibrate, user-defined calibrate, built-in six Conductivity Detector standard calibrate points 84 μS/cm, 1413 μS/cm, 5.00mS/cm, 12.88mS/cm, 80.0mS/cm, 111.8mS/cm |
| TDS range | 0~400000Mg/Lorppm (MAX Maximum depends on TDS coefficient) |
| TDS resolution | 1mg/L(ppm)、0.001g/L(ppt)、0.01g/L(ppt)、0.1g/L(ppt)、1g/L(ppt) |
| TDS Measurement Accuracy | Readings +/- 1% or +/- 1mg/L (ppm), whichever is the largest |
| TDS calibrated mode | To calibrate conductivity or salinity |
| Resistivity range | 0~999999Ω·cm;0~1000.0kΩ·cm;0~1.0000MΩ·cm; |
| resistivity resolution | Depending on the reading |
| Resistivity calibrated mode | To calibrate conductivity or salinity |
| Salinity range | 0.00~70.00PSU |
| Salinity resolution | 0.01PSU |
| Measurement Accuracy of salinity | Reading +/- 2% or +/- 0.01PUS, whichever is the largest |
| Salinity calibrated mode | To calibrate conductivity |
| Measurement range of seawater specific gravity | 0.0~50.0σt,σ0,σ15 |
| Seawater specific gravity resolution | 0.1σt,σ0,σ15 |
| Measurement Accuracy of seawater specific gravity | ±1.0σt,σ0,σ15 |
| Seawater specific gravity calibrated mode | To calibrate conductivity |
| Measurement range | -5.00~55.00℃;23.00~131.00℉;268.15~328.15K |
| temperature resolution | 0.01℃;0.01℉;0.01K |
| Measurement Accuracy | ±0.15℃;±0.27℉;±0.15K |
| Temperature calibrated mode | Single point user calibrated |
| temperature compensation | Automatic temperature compensation, -5.00~55.00 ℃, 23.00~131.00 ° F |
| Data storage | 45000 measurement Data storage, (continuous automatic storage or manual storage) |
| recording interval | Can be set from 1 second to 3 hours |
| Interface | USB Interface (HI9298194 data management software is recommended) |
| Operating Environment | 0~50℃(32~122℉);RH100%IP67 |
| Battery operated | 1.5VAA battery * 4, about 360 hours of continuous use |
| Weight/Size | 185x93x35.2mm(7.3x3.6x1.4“)/400g(14.2oz) |
Warranty days: 365 days