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INTRODUCTORY PRICE! Buy your MX20 before July 1st and save!
Part Numbers
MX20-01
•MX20-01-Ti
•MX20-02
•MX20-02-Ti
•MX20-03
•MX20-03-Ti
•MX20-04
•MX20-04-Ti
HOBO MX20 Research-Grade Water Level Data Logger
with Easy, Fast Bluetooth Wireless Offload
From $620.00 USD
Research-grade accuracy for continuous monitoring of absolute pressure, water level, and temperature in durable steel (freshwater) or Titanium (saltwater) options. Easy wireless offload. Four depths: 4m (13'), 9m (30'), 30m (100'), 76m (250'). Includes NIST-traceable certificate.
Important Information
Requires a compatible mobile device or Windows computer and the HOBOconnect app. System requirements can be found at the bottom of the HOBOconnect software page.
Compatible with
Overview
Delivering the highest accuracy in a rugged design, the wireless MX20 data logger provides research-grade measurements for professional water level monitoring applications in both freshwater and saltwater environments, and features convenient Bluetooth for seamless set-up, configuration, and data offloading.
An integrated absolute pressure sensor eliminates the need for cumbersome vent tubes or desiccants to maintain, and its rugged housing makes it this ideal for long-term deployments, recording water level and temperature up to 250-foot depths. The stainless steel model is ideal for shallow wells, streams, lakes, freshwater wetlands, while the corrosion-resistant Titanium model is well-suited to tidal areas, brackish wetlands, and other seawater environments. This logger's slim, compact design allows it to fit where larger instruments cannot—suiting it well to the small casing diameters groundwater wells often used in environmental remediation and regulatory monitoring applications.
A scalable solution that simplifies workflows and data collection from large numbers of wells for hydrologists, field technicians, mitigation specialists, and others, MX20 loggers can offload data to LI-COR Cloud® software with an accompanying MX Data Plan, which gives users access to a range of time-saving tools.
Features
- Research-grade accuracy supports groundwater studies, regulatory reporting, water resource management, scientific research and other professional applications
- Rugged construction endures for long-term monitoring up to 10 years
- Time-saving wireless data offload from integrated Bluetooth simplifies workflows
- HOBOconnect mobile app provides easy conversion to accurate water level reading, fully compensated for barometric pressure, temperature, and water density
- Cost-effective performance solution for monitoring large number of wells/locations
- Reliable absolute pressure sensor eliminates the need for vent tubes prone to clogging or freezing and desiccants
- Available in four depth ranges
- Compact-diameter design allows deployment in narrow wells while leaving room for suspension cables and other equipment
- Available in stainless steel (freshwater) and Titanium (saltwater) versions
- 3-point NIST-traceable calibration certificate included
Benefits of LI-COR Cloud Monitoring Software
- Access monitoring data from anywhere
- Visualize, analyze, and share data with your team
- Securely upload and manage field data in LI-COR Cloud
Specifications
Pressure (Absolute) and Water Level Measurements MX20-01 | MX20-01-Ti
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0 to 207 kPa (0 to 30 psia); approximately 0 to 9 m (0 to 30 ft) of water depth at sea level, or 0 to 12 m (0 to 40 ft) of water at 3,000 m (10,000 ft) of altitude
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69 to 207 kPa (10 to 30 psia), 0° to 40°C (32° to 104°F)
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310 kPa (45 psia) or 18 m (60 ft) depth
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9m (30') Typical error: ±0.05% FS, 1.0 cm (0.03 ft) water Maximum error: ±0.1% FS, 3 cm (0.1 ft) water
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±0.3% FS, 0.62 kPa (0.09 psi) maximum error
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<0.02 kPa (0.003 psi), 0.21 cm (0.007 ft) water
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<1 second; measurement accuracy also depends on temperature response time
Operation Range
Factory Calibrated Range
Burst Pressure
Water Level Accuracy*
Raw Pressure Accuracy**
Resolution
Pressure Response Time (90%)***
Pressure (Absolute) and Water Level Measurements MX20-02 | MX20-02-Ti
-
0 to 400 kPa (0 to 58 psia); approximately 0 to 30.6 m (0 to 100 ft) of water depth at sea level, or 0 to 33.6 m (0 to 111 ft) of water at 3,000 m (10,000 ft) of altitude
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69 to 400 kPa (10 to 58 psia), 0° to 40°C (32° to 104°F)
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500 kPa (72.5 psia) or 40.8 m (134 ft) depth
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Typical error: ±0.05% FS, 1.5 cm (0.05 ft) waterMaximum error: ±0.1% FS, 3 cm (0.1 ft) water
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±0.3% FS, 1.20 kPa (0.17 psi) maximum error
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<0.04 kPa (0.006 psi), 0.41 cm (0.013 ft) water
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<1 second; measurement accuracy also depends on temperature response time
Operation Range
Factory Calibrated Range
Burst Pressure
Water Level Accuracy*
Raw Pressure Accuracy**
Resolution
Pressure Response Time (90%)***
Pressure (Absolute) and Water Level Measurements MX20-03 | MX20-03-Ti
-
0 to 850 kPa (0 to 123.3 psia); approximately 0 to 76.5 m (0 to 251 ft) of water depth at sea level, or 0 to 79.5 m (0 to 262 ft) of water at 3,000 m (10,000 ft) of altitude
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69 to 207 kPa (10 to 30 psia), 0° to 40°C (32° to 104°F)
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1200 kPa (174 psia) or 112 m (368 ft) depth
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Typical error: ±0.05% FS, 3.8 cm (0.125 ft) waterMaximum error: ±0.1% FS, 7.6 cm (0.25 ft) water
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±0.3% FS, 2.55 kPa (0.37 psi) maximum error
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<0.085 kPa (0.012 psi), 0.87 cm (0.028 ft) water
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<1 second; measurement accuracy also depends on temperature response time
Operation Range
Factory Calibrated Range
Burst Pressure
Water Level Accuracy*
Raw Pressure Accuracy**
Resolution
Pressure Response Time (90%)***
Pressure (Absolute) and Water Level Measurements MX20-04 | MX20-04-Ti
-
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
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69 to 145 kPa (10 to 21 psia), 0° to 40°C (32° to 104°F)
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310 kPa (45 psia) or 18 m (60 ft) depth
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4m (13') Typical error: ±0.075% FS, 0.3 cm (0.01 ft) water Maximum error: ±0.15% FS, 0.6 cm (0.02 ft) water
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±0.3% FS, 0.43 kPa (0.063 psi) maximum error
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<0.014 kPa (0.002 psi), 0.14 cm (0.005 ft) water
-
<1 second; measurement accuracy also depends on temperature response time
Operation Range
Factory Calibrated Range
Burst Pressure
Water Level Accuracy*
Raw Pressure Accuracy**
Resolution
Pressure Response Time (90%)***
Temperature Measurements (All Models)
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-20° to 50°C-4° to 122°F
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±0.2°C from 0° to 50°C (±0.36°F from 32° to 122°F)
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0.002°C at 25°C (0.004°F at 77°F)
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5 minutes in water (typical)
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0.1°C (0.18°F) per year
Operation Range
Accuracy
Resolution
Response Time (90%)
Stability (Drift)
Logger
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Bluetooth 5 LE
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Approximately 3-10 ft line-of-sight
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1mW (0 dBm)
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± 1 minute per month 0° to 50°C32° to 122°F
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2/3 AA, 3.6 Volt lithium, factory-replaceable
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3 years with 1-minute logging, Bluetooth always on7 years with 1-minute logging, Bluetooth and LED off10 years with 5-minute logging, Bluetooth and LED off
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Approximately 400,000 sets of pressure and temperature measurements
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Stainless steel models: approximately 210 g (7.4 oz)
Titanium models: approximately 140 g (4.8 oz)
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2.46 cm (0.97 inches) diameter, 15 cm (5.9 inches) length; mounting hole 6.3 mm (0.25 inches) diameter
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316 stainless steel, Viton® o-rings, acetyl cap, ceramic sensorTitanium models: Titanium, Viton O-rings, acetal cap, ceramic sensor
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Fixed-interval (normal or statistics), burst or multiple intervals with up to 8 user-defined intervals and durations; logging intervals from 1 second to 18 hours. Refer to the HOBOconnect User’s Guide for details.
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Immediate start and delayed start
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Immediate, next interval, date & time, button start (fob or app)
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Memory full, never stop (overwrite oldest data), date & time, or after set logging period
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Pause and restart with HOBOconnect app
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Log high- or low-alarm events; alarm status shown in HOBOconnect app
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Battery status shown in HOBOconnect app (approximate)
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IP68
Wireless Standard
Transmission Range
Radio Power
Real-time Clock
Battery
Battery Life (Typical Use)
Memory
Weight
Dimensions
Wetted Materials
Logging Modes
Launch Modes
Start Modes
Stop Modes
Pause
Alarms
Battery Indication
Environmental Rating
NOTES
* Water Level Accuracy: With accurate reference water level measurement, known water density, accurate barometric compensation 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%.
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Compatible items
Stainless Steel Cable/Crimps
Well Caps
Compliance Certificates
Accessories
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