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Onset HOBO Deluxe Water Level Kit with (2) U20 Data Loggers, Shuttle, Carrying Case and HOBOWare Pro Software on CD.

Onset HOBO Deluxe Water Level Kit

Temperature, Water Level and Barometric Pressure Measurements

Part Number: KIT-D-U20-01

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  • Measure and Log Water Level, Barometric Pressure and Temperature Readings at a Depth up to 13, 30 or 100ft

  • A non-Vent Tube Design Allows for Easy Deployment

  • (8) User-Defined Logging Intervals Over an 1 Second to 18 Hour Sampling Rate

  • Stainless Steel Housing with Lightning Protection Shields Electronics

  • Factory-Replaceable 5-Year 2/3 AA Lithium Battery

Includes (2) U20 Water Level Data Loggers, Shuttle Data Transporter (U-DTW-1), Carrying Case (U20-CASE) and HOBOware Pro Software (BHW-PRO-DLD)

Special order - please allow 3-5 business days for this item to ship.


All Calibration Orders Have a 5 to 7 Business Day Lead Time
1 Year Calibration Due Date Unless Otherwise Specified


Onset HOBO® U20 Water Level Data Logger Specifications

Data Channels 2 Channels (Water Level and Temperature)
Water Level (Pressure) Range*: 0 to 9 m (0 to 30 ft); 0 to 207 kPa (0 to 30 psia)
Factory Calibrated Range**: 69 to 207 kPa (10 to 30 psia)
Water Level Accuracy***: 0.5cm (0.015 ft) water; ±0.05% FS
Raw Pressure Accuracy: ±0.3% FS, 0.62 kPa (0.09 psi) Max
Resolution: 0.21 cm (0.007 ft), < 0.02 kPA (0.003 psi)
Burst Pressure: 310 kPa (45 psia) or 18m (60 ft) depth
Response Time (Pressure): < 1 Second to 90%
Response Time (Thermal): About 10 Minutes in Water to Achieve Full Temperature Compensation of the Pressure Sensor
* Nominal Values at Sea Level
** @ 0°C to 40°C Temperature Range
*** Typical Maximum Error Over the Full Temperature and Pressure Calibrated Range
Temperature Range: -20°C to 50°C (-4°F to 122°F)
Accuracy: ±0.37°C @ 20°C; ±0.5°C @ -5°C to 50°C
Resolution: 0.1°C @ 20°C; 0.2°C @ -5°C to 50°C
Response Time: 3.5 Minutes in Water to 90%
Stability (Drift): ≤0.1°C/year (≤0.18°F/year)
Data Storage Capacity 21,700 Total Readings (10,850 Pressure and Temperature)
Sampling Rate 1 Second to 18 Hours (User-Specified)
Up to 8 Sampling Intervals User-Defined
Battery 2/3 AA 3.6 Volt Lithium Battery - Factory Replaceable
Battery Life 5 Years @ 1 Minute Sampling Rate
(Dependant Upon Environment and Operating Range)
Battery Status Indication Battery status displayed at launch or with status screen; Battery voltage can be logged
Environment Waterproof; suitable for deployment in water or air, case materials resistant to fuels, solvents and lubricants. Titanium version recommended for saltwater deployments.
Operating Range Temperature: -20°C to 50°C (4°F to 122°F)
Sample & Event Logging Samples: Recorded Sensor Measurements
Events: Logger Activity (ie: Bad Battery, Host Connected)
Wetted Materials Vitron® O-Rings, Acetyle Cap and Ceramic Sensor
U20-001-01 Housing: 316 Stainless Steel
U20-001-01-TI Housing: Titanium
Software Compatibility HOBOware and HOBOware PRO
OS Compatibility Windows: Windows 10, 8.1, 8 and 7
Mac: OS X 10.9.x, 10.10.x and 10.11.x
Operation Indicator Red LED in Communications Window
Start Modes Immediate Start, Programmable Start Time/Date
Offload Modes Offload while logging or stop and offload
Real-Time Clock ±1 minute per month 0°C to 50°C (32°F to 122°F)
Standards Compliance CE
Weight 210 g (7.4 oz)
Dimensions Logger: 24.6mm D x 150mm L (0.97" D x 5.9" L)
Mounting Hole: 6.3mm (0.25") Diameter

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