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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.
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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.
Benefits of LI-COR Cloud Monitoring Software:
Pressure (Absolute) and Water Level Measurements MX20-01 | MX20-01-Ti
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
69 to 207 kPa (10 to 30 psia), 0° to 40°C (32° to 104°F)
310 kPa (45 psia) or 18 m (60 ft) depth
±0.3% FS, 0.62 kPa (0.09 psi) maximum error
<0.02 kPa (0.003 psi), 0.21 cm (0.007 ft) water
<1 second; measurement accuracy also depends on temperature response time
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
69 to 400 kPa (10 to 58 psia), 0° to 40°C (32° to 104°F)
500 kPa (72.5 psia) or 40.8 m (134 ft) depth
±0.3% FS, 1.20 kPa (0.17 psi) maximum error
<0.04 kPa (0.006 psi), 0.41 cm (0.013 ft) water
<1 second; measurement accuracy also depends on temperature response time
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
69 to 207 kPa (10 to 30 psia), 0° to 40°C (32° to 104°F)
1200 kPa (174 psia) or 112 m (368 ft) depth
±0.3% FS, 2.55 kPa (0.37 psi) maximum error
<0.085 kPa (0.012 psi), 0.87 cm (0.028 ft) water
<1 second; measurement accuracy also depends on temperature response time
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
69 to 145 kPa (10 to 21 psia), 0° to 40°C (32° to 104°F)
310 kPa (45 psia) or 18 m (60 ft) depth
±0.3% FS, 0.43 kPa (0.063 psi) maximum error
<0.014 kPa (0.002 psi), 0.14 cm (0.005 ft) water
<1 second; measurement accuracy also depends on temperature response time
Temperature Measurements (All Models)
±0.2°C from 0° to 50°C (±0.36°F from 32° to 122°F)
0.002°C at 25°C (0.004°F at 77°F)
5 minutes in water (typical)
0.1°C (0.18°F) per year
Logger
2/3 AA, 3.6 Volt lithium, factory-replaceable
Approximately 400,000 sets of pressure and temperature measurements
Stainless steel models: approximately 210 g (7.4 oz)
Titanium models: approximately 140 g (4.8 oz)
2.46 cm (0.97 inches) diameter, 15 cm (5.9 inches) length; mounting hole 6.3 mm (0.25 inches) diameter
IP68
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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