MX20 Series Research Grade Water Level Data Loggers
SKU
MX20
In stock
- Recording Water Level (Depth) and Temperature in Wet or Water Environments
- -20°C to 50°C Temperature Measurement Range with ±0.20°C Accuracy
- Download Data Using Bluetooth Communications
- Setup, Configure and View Reports Online via HOBOconnect App or Browser
- Stainless Steel and Titanium Housing Options Available
- 0 to 13 ft, 0 to 30 ft, 0 to 100 ft and 0 to 250 ft Water Level Ranges Available with Typical ±0.3% FS Accuracy
Overview of the MX20 Series Bluetooth Water Level Data Loggers
The HOBO MX20 Series water level data loggers are research-grade instruments designed for accurate measurement of water level and temperature across a wide range of environmental and hydrological applications. These water level loggers feature integrated barometric pressure compensation, eliminating the need for separate reference sensors and simplifying deployment. Bluetooth Low Energy connectivity allows users to easily configure devices and download data wirelessly using a mobile app.
The MX20 Series includes multiple models (MX20-01, MX20-02, MX20-03 and MX20-04), each offering different depth ranges to suit specific monitoring needs. These range from shallow water applications of approximately 4 meters to deeper deployments exceeding 70 meters, making them suitable for wells, rivers, lakes, and coastal environments.
The MX20 series data loggers also features a durable, corrosion-resistant stainless steel or titanium housing built for long-term deployment in both freshwater and marine conditions.
User Manuals and Product Guides
HOBO™ MX20 Bluetooth Research Grade Water Level Data Logger Specifications
| Data Channels | 1 Temperature Channel 1 Pressure/Water Level Channel |
| Water Level | Measurement Range (MX20-01 and MX20-01-TI): 0 to 9m (0 to 30ft) - Sea Level; 0 to 12m (0 to 40ft) @ 3,000m Altitude Measurement Range (MX20-02 and MX20-02-TI): 0 to 30.6m (0 to 100ft) - Sea Level; 0 to 33.6m (0 to 111ft) @ 3,000m Altitude Measurement Range (MX20-03 and MX20-03-TI): 0 to 76.5m (0 to 251ft) - Sea Level; 0 to 79.5m (0 to 262ft) @ 3,000m Altitude Measurement Range (MX20-04 and MX20-04-TI): 0 to 4m (0 to 13ft) - Sea Level; 0 to 7m (0 to 23ft) @ 3,000m Altitude Typical Accuracy (MX20-01 and MX20-01-TI): ±0.05% FS (Full Scale), 1.0 cm (0.03 ft) Water Typical Accuracy (MX20-02 and MX20-02-TI): ±0.05% FS (Full Scale), 1.5 cm (0.05 ft) Water Typical Accuracy (MX20-03 and MX20-03-TI): ±0.05% FS (Full Scale), 3.8 cm (0.125 ft) Water Typical Accuracy (MX20-04 and MX20-04-TI): ±0.075% FS (Full Scale), 0.14 cm (0.005 ft) Water Maximum Accuracy (MX20-01 and MX20-01-TI): ±0.1% FS (Full Scale), 3.0 cm (0.1 ft) Water Maximum Accuracy (MX20-02 and MX20-02-TI): ±0.1% FS (Full Scale), 3.0 cm (0.1 ft) Water Maximum Accuracy (MX20-03 and MX20-03-TI): ±0.1% FS (Full Scale), 7.6 cm (0.25 ft) Water Maximum Accuracy (MX20-04 and MX20-04-TI): ±0.15% FS (Full Scale), 0.6 cm (0.002 ft) Water Resolution (MX20-01 and MX20-01-TI): 0.21 cm (0.007 ft) Water Resolution (MX20-02 and MX20-02-TI): 0.41 cm (0.013 ft) Water Resolution (MX20-03 and MX20-03-TI): 0.87 cm (0.028 ft) Water Resolution (MX20-04 and MX20-04-TI): 0.14 cm (0.005 ft) Water NOTE: Measurement Accuracy Also Depends on Temperature Response Time |
| Pressure (Absolute) | Pressure Range (MX20-01 and MX20-01-TI): 0 to 207kPa (0 to 30 psia) Pressure Range (MX20-02 and MX20-02-TI): 0 to 400kPa (0 to 58 psia) Pressure Range (MX20-03 and MX20-03-TI): 0 to 850kPa (0 to 123.3 psia) Pressure Range (MX20-04 and MX20-04-TI): 0 to 145kPa (0 to 21 psia) Calibrated Range (MX20-01 and MX20-01-TI): 69 to 207 kPa (10 to 30 psia) @ 0°C to 40°C Calibrated Range (MX20-02 and MX20-02-TI): 69 to 400 kPa (10 to 58 psia) @ 0°C to 40°C Calibrated Range (MX20-03 and MX20-03-TI): 69 to 207 kPa (10 to 30 psia) @ 0°C to 40°C Calibrated Range (MX20-04 and MX20-04-TI): 69 to 145 kPa (10 to 21 psia) @ 0°C to 40°C Burst Pressure (MX20-01 and MX20-01-TI): 310 kPa (45 psia) or 18 m (60 ft) depth Burst Pressure (MX20-02 and MX20-02-TI): 500 kPa (72.5 psia) or 40.8 m (134 ft) depth Burst Pressure (MX20-03 and MX20-03-TI): 1200 kPa (174 psia) or 112 m (368 ft) depth Burst Pressure (MX20-04 and MX20-04-TI): 310 kPa (45 psia) or 18 m (60 ft) depth Raw Pressure Accuracy (MX20-01 and MX20-01-TI): ±0.3% FS (Full Scale), 0.62 kPa (0.09 psi) - Max Error Raw Pressure Accuracy (MX20-02 and MX20-02-TI): ±0.3% FS (Full Scale), 1.20 kPa (0.17 psi) - Max Error Raw Pressure Accuracy (MX20-03 and MX20-03-TI): ±0.3% FS (Full Scale), 2.55 kPa (0.37 psi) - Max Error Raw Pressure Accuracy (MX20-04 and MX20-04-TI): ±0.3% FS (Full Scale), 0.43 kPa (0.063 psi) - Max Error Resolution (MX20-01 and MX20-01-TI): <0.02 kPa (0.003 psi) Resolution (MX20-02 and MX20-02-TI): <0.04 kPa (0.006 psi) Resolution (MX20-03 and MX20-03-TI): <0.085 kPa (0.012 psi) Resolution (MX20-04 and MX20-04-TI): <0.014 kPa (0.0002 psi) Response Time: < 1 Second @ Stable Temperature to 90% |
| Temperature | Measurement Range: -20°C to 50°C (-4°F to 122°F) Accuracy: ±0.2°C from 0°C to 50°C (±0.36°F from 32°F to 122°F) Resolution: 0.002°C at 25°C (0.04°F at 77°F) Response Time: 5 Minutes in Water to 90% (Typical) Stability (Drift): 0.1°C (0.18°F) per Year |
| Sampling Rate | 1 Second to 18 Hours (User-Specified) |
| Data Storage Capacity | 400,000 Pressure and Temperature Readings (When Bluetooth Communications Not Available) |
| Power Source | 2/3 AA 3.6 Volt Lithium Battery (Factory-Replaceable) |
| Battery Life | 3 Years: 1 Minute Logging and Bluetooth Always On 7 Years: 1-Minute Logging and Bluetooth Off and LED Off 10 Years: 5-Minute Logging and Bluetooth Off and LED Off |
| Communications | Type: Bluetooth Wireless Wireless Data Standard: Bluetooth Smart (Bluetooth Low Energy, Bluetooth 5.0) Transmission Range: Approximately 3ft to 10 ft Line of Sight Radio Power: 1 mW (0 dBm) |
| Logging Mode | Fixed Interval (Normal or Statistics), Burst or Multiple Intervals with up to 8 User-Defined Intervals and Durations |
| Start Mode | Immediately, Push Button, Date & Time or Next Interval |
| Stop Mode | Memory Full, Wrap When Data Storage Full, Push Button, Date & Time or After Set Interval |
| Alarms | High or Low Alarm Events, Logged and Alarm Status Shown in HOBOconnect App |
| Battery Indication | Battery status shown in HOBOconnect app (approximate) |
| Time Accuracy | ±1 Minute per Month @ 25°C |
| Software | HOBOconnect Software App for iOS and Android Note: Bluetooth 5.0 is Required on your Mobile Device (Phone or Tablet) |
| OS Compatibility | Android Phones and Tablets iPhone, iPad, iPod Touch with iOS 7.1 or Later Bluetooth 4.0 or Later |
| Operating Range | Temperature: -40°C to 70°C (-40°F to 158°F) Humidity: 0 to 100% RH |
| Standards Compliance | CE, IP68, FCC, CE, RoHS |
| Environment | Primarily Designed for Outdoor Usage |
| Wetted Materials | Stainless Steel Models: 316 Stainless Steel Housing; Viton® O-rings; Acetyl Cap, Ceramic Sensor Titanium Models: Titanium Housing; Viton® O-rings; Acetyl Cap, Ceramic Sensor |
| Weight | Stainless Steel Models: 210 grams (7.4 oz) Titanium Models: 140 grams (4.8 oz) |
| Dimensions | 2.46 cm (Diameter) x 15.0 (Length)(1.25" x 6.0") Mounting Hole: 6.3 mm (0.25") Diameter |
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