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| Model | Sky- 612 (Table Top) | |
| DO | Range | 0 to 20ppm |
| Resolution | 0.1ppm | |
| Pressure Adjustment | 0 to 999 mm of Hg (manual) By default 760 | |
| Accuracy | ±2% ±1 digit | |
| Temperature Compensation | 0 to 50°C Auto/Manual | |
| salinity Correction | 0 to 20 mg/L (Manual) By default 0 | |
| Calibration | 2 point auto/Manual | |
| Resolution | 0.1 ppt | |
| Salinity Factor | 0.75 (default) & manually adjustable | |
| Range | -20 to 200°C | |
| Temperature | Resolution | 0.1°C |
| Accuracy | ±2% ±1 digit | |
| Calibration | 2 point auto/Manual | |
| Sensor | pt100 Probe | |
| Data Entry | By 6 soft touch keys with audible sound | |
| Storage | 1000 samples | |
| real Timen Disp | lay | 24 hour mode with date |
| Interface | RS-232, Centronics and computer | |
| Print Format | All data and date wise (user selectable) | |
| Digital Output | Error | Serial RS-232 & Parallel Centronics (selectable) |
| indication | pH Error, ORP Error, CAL Error & T-Error | |
| Accessories | pH Electrode, Buffer solutions, Temperature Probe , Instruction manual, electrode stand | |
| Power Supply | 230 V AC ± 10% 50 Hz |