HOBO 13 Foot Water Level Data Logger
Overview
A great value and easy deployment with no cumbersome vent tubes or desiccants to maintain. Records water level and temperature up to 13-ft depths in shallow wells, streams, lakes, freshwater wetlands (stainless-steel), saltwater/brackish wetlands and tidal areas (titanium).
HOBO 13 Foot Water Level Data Logger
Features
- Lightning protection – no long signal wires, and electronics are shielded in a metal housing
- HOBOware Pro software provides easy conversion to accurate water level reading, fully compensated for barometric pressure, temperature, and water density
- Multiple-rate sampling allows faster sampling at critical times such as when pumping starts or stops
- Available in four depth ranges
- Ideal for use in wells, streams, lakes, wetlands, and tidal areas
- No-vent-tube design for easy reliable deployment
- Available in stainless and titanium versions
- Durable ceramic pressure sensor
- 3-point NIST-traceable calibration certificate included
HOBO 13 Foot Water Level Data Logger
Specifications
Pressure and Water Level Measurements U20-001-04 and U20-001-04-Ti
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
0.6 cm (0.02 ft) water”
Typical error: ±0.075% FS, 0.3 cm (0.01 ft) water
Maximum error: ±0.15% FS
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
HOBO 13 Foot Water Level Data Logger
Temperature Measurements (All Models)
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 in manual
Resolution
0.10°C at 25°C (0.18°F at 77°F), see Plot A in manual
Response Time (90%)
5 minutes in water (typical)
Stability (Drift)
0.1°C (0.18°F) per year
HOBO 13 Foot Water Level Data Logger
Logger
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
Stainless steel models: approximately 210 g (7.4 oz)
Titanium models: approximately 140 g (4.8 oz)
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
316 stainless steel, 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.
Environmental Rating
IP68
* Water Level Accuracy: With accurate reference water level measurement, known water density, accurate Barometric Compensation Assistant data, and a stable temperature environment.
** Raw Pressure Accuracy: Absolute pressure sensor accuracy includes all sensor drift, temperature, and hysteresis-induced errors.
*** Changes in Temperature: Allow 10 minutes in water to achieve full temperature compensation of the pressure sensor. Maximum error due to rapid thermal changes is approximately 0.5%.
Available in
30-Foot Depth Water Level Data Logger
250-Foot Depth Water Level Data Logger
100-Foot Depth Water Level Data Logger
HOBO 13 Foot Water Level Data Logger
