Data logger ekonomis untuk mengukur salinitas, konduktivitas, dan suhu di lingkungan air laut dengan perubahan salinitas yang relatif kecil (±5.000 μS/cm), seperti teluk air asin, atau untuk mendeteksi perubahan salinitas akibat upwelling, hujan deras, dan pembuangan air. Data dari alat ini dapat digunakan bersama data dari HOBO U26 Dissolved Oxygen Logger untuk memantau persentase saturasi oksigen terlarut.
| Measurements | Actual Conductivity, Temperature, Specific Conductance at 25°C (calculated), Salinity (calculated using PSS-78, the Practical Salinity Scale 1978) |
| Conductivity Measurement Ranges | Low range: 100 to 10,000 µS/cm High range: 5000 to 55,000 µS/cm |
| Conductivity Calibrated – Temperature Range | 5° to 35°C (41° to 95°F) |
| Conductivity Extended Ranges | Low range: 100 to 10,000 µS/cm High range: 5000 to 55,000 µS/cm (readings below these ranges reported as 0) |
| Temperature Measurement Range | -2° to 36°C (28° to 97°F) |
| Specific Conductance Accuracy (in Calibrated Range using Conductivity Assistant and Calibration Measurements) | Low range: 3% of reading or 50 µS/cm (whichever is greater) High range: 55% of reading, in waters within a range of ±3,000 µS/cm; waters with greater variation can have substantially greater error |
| Conductivity Resolution | 2 µS/cm (typical) |
| Temperature Accuracy | 0.1°C (0.2°F) at 25°C (77°F) |
| Temperature Resolution | 0.01°C (0.02°F) |
| Conductivity Drift | Up to 12% sensor drift per month, exclusive of drift from fouling. Monthly start- and end-point calibration should be used with the HOBOware Conductivity Assistant to achieve the specified Specific Conductance accuracy. |
| Response Time | 1 second to 90% of change (in water) |
| Operating Range | -2° to 36°C (28° to 97°F), non-freezing |
| Memory | 18,500 temperature and conductivity measurements (single range) 11,500 measurement sets (dual range) 64 KB total memory |
| Sample Rate | 1 second to 18 hrs, fixed or multiple-rate sampling with up to 8 user-defined sampling intervals |
| Clock Accuracy | ±1 minute per month |
| Battery Life | 3 years (@ 1-minute logging) |
| Maximum Depth | 70 m (225 ft) |
| Weight | 193 gm (6.82 ounces), buoyancy in freshwater: -59.8 gm (-2.11 ounces) |
| Size | 3.18 cm diameter x 16.5 cm, with 6.3 mm mounting hole (1.25″ diameter x 6.5″, ¼” hole) |
| Wetted Housing Materials | Delrin®, epoxy, stainless steel retaining ring, polypropylene, Buna rubber O-ring, titanium pentoxide (inert coating over sensor) – all materials are suitable for long-term use in saltwater. |
| Environmental Rating | IP68 |
