- Watertight
- On-screen operation guide
- Automatic Temperature Compensation
These EC/TDS meters are lightweight, water-tight and easy to maintain. Each desired measurement mode features its own key for quick selection.
HI 8731 measures EC and TDS with extended ranges (from 0 to 6000 µS/cm and from 0 to 3000 ppm, respectively).
The HI 761285 probe features a built-in temperature sensor and has been designed to require little maintenance.
Spesification :
 
| Range | EC | 0 to 6000 µS/cm | 
| TDS | 0 to 3000 ppm | |
| Temperature | 0 to 70°C | |
| Resolution | EC | 10 µS/cm | 
| TDS | 10 ppm | |
| Temperature | 0.1°C | |
| Accuracy @ 20°C | EC | ±2% F.S. | 
| TDS | ±2% F.S. | |
| Temperature | ±0.5°C | |
| TDS Factor | 0.5 | |
| Calibration | EC/TDS | Manual, one point, through front knob | 
| Temperature | factory calibrated | |
| Probe | HI 761285 conductivity probe with internal temperature sensor, DIN connector and 1 m (3.3’) cable (included) | |
| Temperature Compensation | Automatic, 0 to 50°C (32 to 122°F) with ß=2%/°C | |
| Environment | 0 to 50°C (32 to 122°F); RH max 100% | |
| Battery Type / Life | 1.9V / approximately 200 hours of continuous use | |
| Dimensions | 145 x 80 x 36 mm (5.7 x 3.1 x 1.4’’) | |
| Weight | 230 g (8.1 oz.) | 
 
