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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: 5,000 to 55,000 µS/cm
Conductivity Calibrated Range - Temperature Range: 5° to 35°C (41° to 95°F)
Conductivity Extended Ranges:
Low Range: 50 to 30,000 µS/cm
High Range: 1,000 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: 5% of reading, in waters within a range of ±3,000 µS/cm of the calibration point; 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)
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 when using one conductivity range; 11,500 sets of measurements when using
both conductivity ranges (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: 3.6 Volt lithium battery
Maximum Depth: 70 m (225 ft)
Weight: 193 g (6.82 oz), buoyancy in freshwater: -59.8 g (-2.11 oz)
Size: 3.18 cm diameter x 16.5 cm, with 6.3 mm mounting hole (1.25 in. diameter x 6.5 in., 0.25 in. hole)
Delivery scope:
HOBO U24-002-C Conductivity Data Logger
Communications window protective cap
