Description
Measure oxygen concentrations in lakes, streams, rivers, estuaries, and coastal waters with the U26 Dissolved Oxygen Data Logger. This affordable and precise data logger is recommended for aquatic biology and hydrology research projects
Includes:
•U26-001 data logger
•DO sensor cap
•Protective Guard
•Calibration Boot with sponge
Feature
•Affordable, high performance dissolved oxygen (DO) monitoring with 0.2 mg/L accuracy
•Optical DO sensor technology for long-lasting calibration with less maintenance
•Optical USB interface for high-speed, reliable data offload
•Easy-to-replace DO sensor cap lasts six months
Spesification
| Dissolved Oxygen | ||
| Sensor Type: | Optical | |
| Measurement Range: | 0 to 30 mg/L | |
| Calibrated Range: | 0 to 20 mg/L; 0 to 35°C (32 to 95°F) | |
| Accuracy: | ± 0.2 mg/L up to 8 mg/L; ± 0.5 mg/L from 8 to 20 mg/L | |
| Resolution: | 0.02 mg/L | |
| Response Time: | To 90% in less than 2 minutes | |
| DO Sensor Cap Life: | 6 months, cap expires 7 months after initialization | |
| Temperature | ||
| Temperature Measurement/Operating Range: | -5 to 40°C (23 to 104°F); non-Freezing | |
| Temperature Accuracy: | 0.2°C (0.36°F) | |
| Temperature Resolution: | 0.02°C (0.04°F) | |
| Response Time: | To 90% in less than 30 minutes | |
| Logger | ||
| Memory: | 21,700 sets of DO and temperature measurements (64 KB total memory) | |
| Logging Rate: | 1 minute to 18 hours | |
| Time Accuracy: | ±1 minute per month at 0 to 50°C (32 to 122°F) | |
| Battery: | 3.6 V lithium battery; factory replaceable | |
| Battery Life: | 3 years (at 5 minute logging) | |
| Download Type: | Optical | |
| Depth Rating: | 100 m (328 ft) | |
| Wetted Materials: | Black Delrin®, PVC, EPDM o-rings, silicone bronze screws; rated for saltwater use | |
| Size: | 39.6 mm diameter x 266.7 mm length (1.56 x 10.5 inches) | |
| Weight: | 464 g (16.37 oz) | |
