HOBO MX2001 Water Level Bluetooth Data Loggers
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 5 to 60m for deployment in a wide range of wells.
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 5, 10, 15, 30 and 60 meter cable lengths are in stock; custom cable lengths have a 2 to 4 week lead time
- Reference water level can be entered at the start of the deployment
- Use HOBOmobile‚ 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
- Lightning protection - no long signal wires, and electronics are shielded in stainless steel housing for use in freshwater.
- 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 4 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
This data logger operates in outdoor and underwater environments.
The MX2001 data logger supports the following measurements: Absolute Pressure, Barometric Pressure, Differential Pressure, Temperature, Water Level and Water Temp
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Pressure (Absolute) and Water Level Measurements MX2001-01-SS-S and MX2001-01-Ti-S - 9 Meter (30') range |
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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 |
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Factory Calibrated Range |
69 to 207 kPa (10 to 30 psia), 0° to 40°C (32° to 104°F) |
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Burst Pressure |
310 kPa (45 psia) or 18 m (60 ft) depth |
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Water Level Accuracy* |
Typical error: ±0.05% FS, 0.5 cm (0.015 ft) water |
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Raw Pressure Accuracy** |
±0.3% FS, 0.62 kPa (0.09 psi) maximum error |
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Resolution |
<0.02 kPa (0.003 psi), 0.21 cm (0.007 ft) water |
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Pressure Response Time (90%)*** |
1 second at a stable temperature |
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Pressure (Absolute) and Water Level Measurements MX2001-02-SS-S - 30 Meter (100') range |
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Operation 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 |
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Factory Calibrated Range |
69 to 400 kPa (10 to 58 psia), 0° to 40°C (32° to 104°F) |
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Burst Pressure |
500 kPa (72.5 psia) or 40.8 m (134 ft) depth |
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Water Level Accuracy* |
Typical error: ±0.05% FS, 1.5 cm (0.05 ft) water |
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Raw Pressure Accuracy** |
±0.3% FS, 1.20 kPa (0.17 psi) maximum error |
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Resolution |
0.04 kPa (0.006 psi), 0.41 cm (0.013 ft) water |
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Pressure Response Time (90%)*** |
1 second at a stable temperature |
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Pressure (Absolute) and Water Level Measurements MX2001-03-SS-S - 76 Meter (250') range |
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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 |
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Factory Calibrated Range |
69 to 850 kPa (10 to 123.3 psia), 0° to 40°C (32° to 104°F) |
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Burst Pressure |
1,200 kPa (174 psia) or 112 m (368 ft) depth |
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Water Level Accuracy* |
Typical error: ±0.05% FS, 3.8 cm (0.125 ft) water |
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Raw Pressure Accuracy** |
±0.3% FS, 2.55 kPa (0.37 psi) maximum error |
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Resolution |
<0.085 kPa (0.012 psi), 0.87 cm (0.028 ft) water |
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Pressure Response Time (90%)*** |
1 second at a stable temperature |
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Pressure (Absolute) and Water Level Measurements MX2001-04-SS-S and MX2001-04-Ti-S - 4 Meter (13') range |
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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 |
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Factory Calibrated Range |
69 to 145 kPa (10 to 21 psia), 0° to 40°C (32° to 104°F) |
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Burst Pressure |
310 kPa (45 psia) or 18 m (60 ft) depth |
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Water Level Accuracy* |
Typical error: ±0.075% FS, 0.3 cm (0.01 ft) water |
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Raw Pressure Accuracy** |
±0.3% FS, 0.43 kPa (0.063 psi) maximum error |
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Resolution |
<0.014 kPa (0.002 psi), 0.14 cm (0.005 ft) water |
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Pressure Response Time (90%)*** |
<1 second at a stable temperature |
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Barometric Pressure (MX2001-TOP) |
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Operation and Calibrated Range |
66 to 107 kPa (9.57 to 15.52 psia); -20° to 50°C (-4° to 122°F) |
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Accuracy |
±0.2 kPa (±0.029 psi) over full temperature range at fixed pressure; maximum error ±0.5% FS |
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Water Level Accuracy* |
Typical error: ±0.075% FS, 0.3 cm (0.01 ft) water |
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Resolution |
0.01 kPa (0.0015 psi) |
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Response Time |
1 second at stable temperature |
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Stability (Drift) |
0.01 kPa (0.0015 psi) per year |
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Temperature Measurements (All Sensor End Models MX2001-0x-SS-S and MX2001-0x-Ti-S) |
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Operation Range |
-20° to 50°C (-4° to 122°F) |
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Accuracy |
±0.44°C from 0° to 50°C (±0.79°F from 32° to 122°F), see Plot A |
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Resolution |
0.1°C at 25°C (0.18°F at 77°F), see Plot A in manual |
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Response Time (90%) |
5 minutes in water (typical) |
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Stability (Drift) |
0.1°C (0.18°F) per year |
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Logger |
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Operation Range |
-20° to 50°C (-4° to 122°F) |
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Radio Power |
1 mW (0 dBm) |
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Transmission Range |
Approximately 30.5 m (100 ft) line-of-sight |
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Wireless Data Standard |
Bluetooth Low Energy (Bluetooth Smart) |
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Logging Rate |
1 second to 18 hours |
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Logging Modes |
Fixed interval, multiple intervals with up to 8 user-defined logging intervals and durations, or event-triggered burst |
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Memory Modes |
Wrap when full or stop when full |
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Start Modes |
Immediate, date & time, or next interval |
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Stop Modes |
When memory full, stop with HOBOmobile, date & time, or after a set logging period |
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Time Accuracy |
±1 minute per month 0° to 50°C (32° to 122°F) |
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Battery |
Two AA, 1.5 V alkaline batteries, user-replaceable |
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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 HOBOmobile will impact battery life. |
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Memory |
256 KB memory (30,000 sets of measurements) |
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Full Memory Download Time |
Approximately 2 minutes; may take longer the further the device is from the top end of the logger |
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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 |
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Weight |
Top end (MX2001-TOP): Approximately 136 g (4.78 oz) in air |
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Wetted Materials |
Top end (MX2001-TOP): PVC housing, Polycarbonate end cap; Viton O-ring |
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Environmental Rating |
Top end: Weatherproof housing - NEMA 6, IP67 |
