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HOBO MX2001 - Water Level Bluetooth Data Logger

Manufacturer:
The HOBO® MX2001 is the industry’s first water level data logger designed for convenient wireless setup and download from mobile devices via Bluetooth Low Energy.
Part Number: MX2001
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Industry's First BlueTooth (BLE) Water Level Logger

The HOBO® MX2001 is the industry’s first water level data logger designed for convenient wireless setup and download from mobile devices via Bluetooth Low Energy. The logger dramatically simplifies and lowers the cost of field data collection by providing wireless access to high-accuracy water level and temperature measurements right from a mobile phone or tablet. The MX2001 logger consists of a top-end unit and a water level sensor which are sold as a set, plus a direct read cable to connect them. Cables can be ordered in lengths from 0.2 to 500m for deployment in a wide range of wells.


Improve accuracy of water research and studies

The HOBO MX water level logger monitors changing water levels in a wide range of applications, including streams, lakes, wetlands, tidal areas, and groundwater. This Bluetooth® Low Energy (BLE)-enabled logger is designed for wireless communication with a phone, tablet, or computer. Using the HOBOconnect® app, you can easily
configure the logger and download its data—all from its deployed location—to your mobile device or computer where you can view the logged data or export it for further analysis. With the HOBOconnect app, you can also set a reference water level and water density, configure up to 8 logging intervals, log statistics, configure an alarm to trip at thresholds you specify, or set up burst logging in which data is logged at a different interval when sensor readings are above or below certain limits. This logger features a ceramic pressure sensor, durable housing, and an integrated barometric pressure sensor for barometric compensation in the logger, which allows for direct water level readout without needing to do any post processing. An optional cap is also available for deployment in existing wells or stilling wells. Without cumbersome vent tubes or desiccants to maintain and convenient data retrieval, this easy-to-use logger is an ideal solution for water level studies and research.


Highlighted Features

  • Wireless data offload to mobile devices using Bluetooth Low Energy
  • Integrated barometric pressure sensor enables direct water level readout
  • Direct read cable connects sensor to top-end logger/transmitter
    • The cable includes Kevlar strength member
    • Cables are interchangeable so loggers are easy to redeploy in future applications
    • The logger and sensor add 0.39 meters to the length of the cable
    • Cable length can vary up to 3% from the length ordered
    • The 1, 5, 10, 15, 30 and 60 meter cable lengths are in stock; custom cable lengths have an 8 to 10 week lead time
  • Reference water level can be entered at the start of the deployment
  • Use HOBOconnect for setup, data viewing and data sharing 
  • Powered by two user-replaceable AA batteries in the top-end unit
  • Several logging modes: normal, multi-rate logging and event-triggered burst-logging
  • Durable ceramic sensor
  • Available with stainless steel or titanium sensor ends
  • 3-point NIST-traceable calibration certificate included for the water pressure sensor


Accurate Data, Easily

Onset's HOBOconnect app, a free download from the Apple App Store, Google Play, or the Onset website, makes it a snap to configure HOBO MX2001 loggers and manage the collected data. You can view data in graphs, check the operational status of loggers, configure alarm notifications, and share data files.


Innovative

Two-sensor design provides direct water level readout without vent tubes


What measurements does this data logger support?

The MX2001 data logger supports the following measurements: Absolute Pressure, Barometric Pressure, Differential Pressure, Water Level and Water Temp


Key Advantages

  • Fast and easy wireless data offload using a smartphone or tablet
  • No need to remove well caps
  • Uses Bluetooth Low Energy (BLE) that is built into today’s mobile devices, with approximate 30.5 m (100 ft.) transmission range
  • No cables to connect for data offload
  • No buttons to push on the logger (which is required with other versions of Bluetooth)
  • Provides direct water level readout so there is no need to post-process data
  • Integrated barometric pressure sensor rather than a vented sensor with vent tube
  • User-replaceable batteries, typical 1-year life with 1-minute logging interval
  • Memory size 256KB (30,000 measurements)
  • Diameter 2.54 cm (1 inch)
  • Available with stainless steel or titanium nose cones for use in fresh or salt water, and sensor ends are interchangeable.
  • Interchangeable Kevlar reinforced deployment/communication cable, 0.2 – 500 meters
  • Multiple logging modes: fixed, multi-rate, burst, and statistics
  • Runs on a range of iOS mobile devices: iPhone, iPad or iPod Touch running iOS 8.3 or 9.0, with Bluetooth 4.0
  • Free download from Apple App Store and Google Play


Why Customers Should Choose the HOBO MX2001

  • To save time – pulling up loggers takes time, especially in deep wells
  • To avoid tangled cables either with other instruments in the well, or when pulling up loggers with long cables
  • To avoid exposure to contaminants in the well
  • To avoid introducing contaminants to the well

HOBO MX2001 Bluetooth (BLE) Water Level Logger

The HOBO® MX2001 is the industry’s first water level data logger designed for convenient wireless setup and download from mobile devices via Bluetooth Low Energy. Learn how the logger dramatically simplifies and lowers the cost of field data collection by providing wireless access to high-accuracy water level and temperature measurements right from a mobile phone or tablet.


Download the free HOBOconnect app for your iOS or Android mobile device or Windows computer today.

Onset's HOBOconnect app, accessed from a free download from the iTunes or Google Play app store, or your pc, makes it quick and easy to configure compatible MX Series data loggers (chart below) and manage the collected data. From your mobile device, tablet, or Windows computer, users can view data in graphs, check the operational status of loggers, share data files and graph images for analysis in Excel, Numbers, and other applications, and store data in the cloud. HOBOconnect also makes it fast and easy to set up audible alarm notifications so users are immediately notified of problems.

For documentation on the app, click here >>

 

Learn more about HOBOconnect >>

HOBOconnect Download

Technical Information

Pressure (Absolute) and Water Level Measurements MX2001-01-SS-S and MX2001-01-Ti-S

Operation Range 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
Factory Calibrated Range 69 to 207 kPa (10 to 30 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: ±0.05% FS, 0.5 cm (0.015 ft) water
Maximum error: ±0.1% FS, 1.0 cm (0.03 ft) water
Raw Pressure Accuracy** ±0.3% FS, 0.62 kPa (0.09 psi) maximum error
Resolution <0.02 kPa (0.003 psi), 0.21 cm (0.007 ft) water
Pressure Response Time (90%)*** <1 second at a stable temperature

Pressure (Absolute) and Water Level Measurements MX2001-02-SS-S

Operating Range 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
Factory Calibrated Range 69 to 400 kPa (10 to 58 psia), 0° to 40°C (32° to 104°F)
Burst Pressure 500 kPa (72.5 psia) or 40.8 m (134 ft) depth
Water Level Accuracy* Typical error: ±0.05% FS, 1.5 cm (0.05 ft) water
Maximum error: ±0.1% FS, 3.0 cm (0.1 ft) water
Raw Pressure Accuracy** ±0.3% FS, 1.20 kPa (0.17 psi) maximum error
Resolution <0.04 kPa (0.006 psi), 0.41 cm (0.013 ft) water
Pressure Response Time (90%)*** <1 second at a stable temperature

Pressure (Absolute) and Water Level Measurements MX2001-03-SS-S

Operation Range 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
Factory Calibrated Range 69 to 850 kPa (10 to 123.3 psia), 0° to 40°C (32° to 104°F)
Burst Pressure 1,200 kPa (174 psia) or 112 m (368 ft) depth
Water Level Accuracy* Typical error: ±0.05% FS, 3.8 cm (0.125 ft) water
Maximum error: ±0.1% FS, 7.6 cm (0.25 ft) water
Raw Pressure Accuracy* ±0.3% FS, 2.55 kPa (0.37 psi) maximum error
Resolution <0.085 kPa (0.012 psi), 0.87 cm (0.028 ft) water
Pressure Response Time (90)%*** <1 second at a stable temperature

Pressure (Absolute) and Water Level Measurements MX2001-04-SS-S and MX2001-04-Ti-S

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 at a stable temperature

Barometric Pressure (MX2001-TOP)

Operation Range 66 to 107 kPa (9.57 to 15.52 psia)
Temperature Calibrated Range -20 to 50°C (-4 to 122°F)
Accuracy ±0.2 kPa (±0.029 psi) over full temperature range at fixed pressure; maximum error ±0.5% FS
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
Resolution <0.01 kPa (0.0015 psi)
Response Time <1 second at stable temperature
Stability (Drift) <0.01 kPa (0.0015 psi) per year

Temperature Measurements (All Sensor End Models MX2001-0x-SS-S and MX2001-0x-Ti-S)

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 0.1°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

Logger

Operating Range -20° to 50°C (-4° to 122°F)
Radio Power 1 mW (0 dBm)
Transmission Range Approximately 30.5 m (100 ft) line-of-sight
Wireless Data Standard Bluetooth Low Energy (Bluetooth Smart®)
Logging Rate 1 second to 18 hours
Logging Modes Fixed interval, multiple intervals with up to 8 user-defined logging intervals and durations, or burst
Memory Modes Never Stop (Overwrites Old Data) or Stop When Full
Start Modes On Save (immediate), On Next Interval, On Date/Time
Stop Modes Never Stop (Overwrites Old Data), On Date/Time, After (a specified amount of time), Stop When Memory Fills
Time Accuracy ±1 minute per month 0° to 50°C (32° to 122°F)
Battery Two AA, 1.5 V alkaline batteries, user replaceable
Battery Life 1 year, typical with logging interval of 1 minute. Faster logging and/or statistics sampling intervals, entering
burst logging mode, excessive readouts, checking of Full Status Details, and remaining connected with the app
will impact battery life.
Memory 256 KB memory (30,000 sets of measurements)
Full Memory Download Time Approximately 2 minutes; may take longer the further the device is from the top end of the logger
Dimensions Top end (MX2001-TOP): 2.54 cm (1.0 inches) diameter, 28.9 cm (11.4 inches) length; mounting hole 7.6 mm
(0.3 inches) diameter
Sensor end (MX2001-0x-SS-S and MX2001-0x-Ti-S: 2.54 cm (1.0 inches) diameter, 9.91 cm (3.9 inches) length
Note: The length of the water level logger cable (CABLE-DR-xxx) can vary -0% to +3% +10 cm (3.9 inches) from
the length ordered. The logger adds 38.8 cm (15.3) inches to the length of the cable ordered.
Weight Top end (MX2001-TOP): Approximately 136 g (4.78 oz) in air
Stainless sensor end (MX2001-0x-SS-S): Approximately 141.4 g (4.99 oz) in air; approximately 93.4 g (3.3 oz) in
fresh water
Titanium sensor end (MX2001-0x-Ti-S): Approximately 80 g (2.83 oz) in air; approximately 37 g (1.3 oz) in
fresh water
Wetted Materials Top end (MX2001-TOP): PVC housing, Polycarbonate end cap, Viton O-ring
Stainless sensor end (MX2001-0x-SS-S): Stainless steel housing, Viton and Buna-N O-rings, ceramic sensor in
stainless steel end cap
Titanium sensor end (MX2001-0x-Ti-S): Acetal housing, Viton and Buna-N O-rings, ceramic sensor in Titanium
end cap
Cable (CABLE-DR-XXX): Polycarbonate strain relief (top end connection), PVC end cap (sensor connection),
nylon collar nuts, Viton O-rings, polyurethane jacket
Environmental Rating Top end: NEMA 6, IP67; Intermittent 100% RH
Sensor end: IP68
CE The CE Marking identifies this product as complying with all relevant directives in the European Union (EU).
FC See last page of User Manual


* Water Level Accuracy: With accurate reference water level measurement, known water density, and a stable temperature environment. System Water Level Accuracy equals the sum of the Barometric Water Level Accuracy plus the selected sensor end Water Level Accuracy.
** Raw Pressure Accuracy: Absolute pressure sensor accuracy includes all sensor drift, temperature, and hysteresis-induced errors.
*** Changes in Temperature: Allow 20 minutes in water to achieve full temperature compensation of the pressure sensor. There can be up to 0.5% of additional error due to rapid temperature changes. Measurement accuracy also depends on temperature response time.

Industry's First BlueTooth (BLE) Water Level Logger

The HOBO® MX2001 is the industry’s first water level data logger designed for convenient wireless setup and download from mobile devices via Bluetooth Low Energy. The logger dramatically simplifies and lowers the cost of field data collection by providing wireless access to high-accuracy water level and temperature measurements right from a mobile phone or tablet. The MX2001 logger consists of a top-end unit and a water level sensor which are sold as a set, plus a direct read cable to connect them. Cables can be ordered in lengths from 0.2 to 500m for deployment in a wide range of wells.


Improve accuracy of water research and studies

The HOBO MX water level logger monitors changing water levels in a wide range of applications, including streams, lakes, wetlands, tidal areas, and groundwater. This Bluetooth® Low Energy (BLE)-enabled logger is designed for wireless communication with a phone, tablet, or computer. Using the HOBOconnect® app, you can easily
configure the logger and download its data—all from its deployed location—to your mobile device or computer where you can view the logged data or export it for further analysis. With the HOBOconnect app, you can also set a reference water level and water density, configure up to 8 logging intervals, log statistics, configure an alarm to trip at thresholds you specify, or set up burst logging in which data is logged at a different interval when sensor readings are above or below certain limits. This logger features a ceramic pressure sensor, durable housing, and an integrated barometric pressure sensor for barometric compensation in the logger, which allows for direct water level readout without needing to do any post processing. An optional cap is also available for deployment in existing wells or stilling wells. Without cumbersome vent tubes or desiccants to maintain and convenient data retrieval, this easy-to-use logger is an ideal solution for water level studies and research.


Highlighted Features

  • Wireless data offload to mobile devices using Bluetooth Low Energy
  • Integrated barometric pressure sensor enables direct water level readout
  • Direct read cable connects sensor to top-end logger/transmitter
    • The cable includes Kevlar strength member
    • Cables are interchangeable so loggers are easy to redeploy in future applications
    • The logger and sensor add 0.39 meters to the length of the cable
    • Cable length can vary up to 3% from the length ordered
    • The 1, 5, 10, 15, 30 and 60 meter cable lengths are in stock; custom cable lengths have an 8 to 10 week lead time
  • Reference water level can be entered at the start of the deployment
  • Use HOBOconnect for setup, data viewing and data sharing 
  • Powered by two user-replaceable AA batteries in the top-end unit
  • Several logging modes: normal, multi-rate logging and event-triggered burst-logging
  • Durable ceramic sensor
  • Available with stainless steel or titanium sensor ends
  • 3-point NIST-traceable calibration certificate included for the water pressure sensor


Accurate Data, Easily

Onset's HOBOconnect app, a free download from the Apple App Store, Google Play, or the Onset website, makes it a snap to configure HOBO MX2001 loggers and manage the collected data. You can view data in graphs, check the operational status of loggers, configure alarm notifications, and share data files.


Innovative

Two-sensor design provides direct water level readout without vent tubes


What measurements does this data logger support?

The MX2001 data logger supports the following measurements: Absolute Pressure, Barometric Pressure, Differential Pressure, Water Level and Water Temp


Key Advantages

  • Fast and easy wireless data offload using a smartphone or tablet
  • No need to remove well caps
  • Uses Bluetooth Low Energy (BLE) that is built into today’s mobile devices, with approximate 30.5 m (100 ft.) transmission range
  • No cables to connect for data offload
  • No buttons to push on the logger (which is required with other versions of Bluetooth)
  • Provides direct water level readout so there is no need to post-process data
  • Integrated barometric pressure sensor rather than a vented sensor with vent tube
  • User-replaceable batteries, typical 1-year life with 1-minute logging interval
  • Memory size 256KB (30,000 measurements)
  • Diameter 2.54 cm (1 inch)
  • Available with stainless steel or titanium nose cones for use in fresh or salt water, and sensor ends are interchangeable.
  • Interchangeable Kevlar reinforced deployment/communication cable, 0.2 – 500 meters
  • Multiple logging modes: fixed, multi-rate, burst, and statistics
  • Runs on a range of iOS mobile devices: iPhone, iPad or iPod Touch running iOS 8.3 or 9.0, with Bluetooth 4.0
  • Free download from Apple App Store and Google Play


Why Customers Should Choose the HOBO MX2001

  • To save time – pulling up loggers takes time, especially in deep wells
  • To avoid tangled cables either with other instruments in the well, or when pulling up loggers with long cables
  • To avoid exposure to contaminants in the well
  • To avoid introducing contaminants to the well

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