HOBO by Onset U20-001-04 – 13-Foot Fresh Water Level Data Logger
$422.00
In Stock
Shallow freshwater logging operations reach absolute stability when using the HOBO U20-001-04 environmental monitoring capsule. This single-channel tool features an ultra-reliable 316 stainless steel housing measuring 0.97 inches in diameter by 5.9 inches in length. It provides a 0 to 13 ft measuring range, a 21.700 log capacity, and a clear ±0.01 ft elevation resolution.
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HOBO by Onset U20-001-04 - 13-Foot Fresh Water Level Data Logger Specs
| Brand | N/A |
| Operation Range | 0 to 145 kPa (0 to 21 psia); approximately 0 to 4 m (0 to 13 ft) of water depth at sea level, or 0 to 7 m (0 to 23 ft) of water at 3,000 m (10,000 ft) of altitude |
| Factory Calibrated Range | 69 to 145 kPa (10 to 21 psia), 0° to 40°C (32° to 104°F) |
| Burst Pressure | 310 kPa (45 psia) or 18 m (60 ft) depth |
| Water Level Accuracy* | Typical error: ±0.075% FS, 0.3 cm (0.01 ft) water Maximum error: ±0.15% FS, 0.6 cm (0.02 ft) water |
| Raw Pressure Accuracy** | ±0.3% FS, 0.43 kPa (0.063 psi) maximum error |
| Resolution | <0.014 kPa (0.002 psi), 0.14 cm (0.005 ft) water |
| Pressure Response Time (90%)*** | <1 second; measurement accuracy also depends on temperature response time |
| Operation Range | -20° to 50°C (-4° to 122°F) |
| Accuracy | ±0.44°C from 0° to 50°C (±0.79°F from 32° to 122°F), see Plot A |
| Resolution | 0.10°C at 25°C (0.18°F at 77°F), see Plot A |
| Response Time (90%) | 5 minutes in water (typical) |
| Stability (Drift) | 0.1°C (0.18°F) per year |
| Real-time Clock | ± 1 minute per month 0° to 50°C (32° to 122°F) |
| Battery | 2/3 AA, 3.6 Volt lithium, factory-replaceable |
| Battery Life (Typical Use) | 5 years with 1 minute or greater logging interval |
| Memory (Non-volatile) | 64K bytes memory (approx. 21,700 pressure and temperature samples) |
| Weight | 316 stainless steel, Viton® o-rings, acetyl cap, ceramic sensor |
| Dimensions | 2.46 cm (0.97 inches) diameter, 15 cm (5.9 inches) length; mounting hole 6.3 mm (0.25 inches) diameter |
| Wetted Materials | Titanium, Viton® o-rings, acetyl cap, ceramic sensor |
| Logging Interval | Fixed-rate or multiple logging intervals, with up to 8 user-defined logging intervals and durations; logging intervals from 1 second to 18 hours. Refer to the HOBOware software manual |
| Launch Modes | Immediate start and delayed start |
| Offload Modes | Offload while logging; stop and offload |
| Battery Indication | Battery voltage can be viewed in status screen and optionally logged in datafile. Low battery indication in datafile |
| CE Compliant | The CE Marking identifies this product as complying with all relevant directives in the European Union (EU) |
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