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Part Number -
MX2310
HOBO MX2310 Temp/RH + PAR + Soil EC/VWC/Temp Data Logger
Measures Temperature, RH & PAR and Soil EC with LI-COR sensors
$875.00 USD
High-precision monitoring of Photosynthetically Active Radiation (PAR), temperature, RH, and Soil EC/volumetric water content with effortless Bluetooth data offload, ideal for comprehensive monitoring of root-zone conditions.
Important Information
Requires a compatible mobile device or Windows computer and the HOBOconnect app. System requirements for the app can be found at bottom of the HOBOconnect software page.
Get cloud storage and access to the powerful tools of LI-COR Cloud® IoT software! (formerly HOBOlink)
Add an MX Data Plan!
Compatible with
Overview
Rugged and Bluetooth-enabled, the MX2310 delivers an all-in-one solution for soil–plant–atmosphere monitoring that provides insights at the root level to inform irrigation and fertilization decisions. Get research-grade photosynthetically active radiation (PAR), temperature and relative humidity—plus soil salinity and volumetric water content measurements, all in a single device. Whether you’re growing plants in a commercial greenhouse, managing indoor vertical farms, fine-tuning conditions in hydroponic systems, or conducting agricultural or ecological research, the MX2310 completes your growing picture, giving you the data you need to optimize conditions for growth, health, and productivity.
Built for simplicity and flexibility, this multi-parameter logger integrates LI-COR® LI-190R PAR and LI-300/350 sensors, trusted by researchers worldwide for its precision in measuring photosynthetically active radiation (PAR).
IMPORTANT NOTE: For mounting, an M-PLT and 2003S Leveling Fixture are required. Mounting to poles or pipes require an M-BRK and 2003S.
This versatile logger is designed to operate reliably across diverse environments, from high-tech vertical farming racks to outdoor experimental plots to support informed decisions around lighting, ventilation, and irrigation without the complexity or high costs of traditional monitoring systems:
What the MX2310 Temp/RH/PAR Logger Supports:
Irrigation Timing:
Helps determine when to irrigate vs. fixed schedules
Dryback Tracking
Informs greenhouse, cannabis and substrate-based growing operations
Overwatering prevention
High VWC can indicate poor drainage, low oxygen risk, or disease-prone conditions. High VWC can indicate poor drainage, low oxygen risk, or disease-prone conditions. High VWC can indicate poor drainage, low oxygen risk, or disease-prone conditions.Detecting high VWC can indicate drainage issues, low oxygen availability, and disease-prone conditions
With Bluetooth wireless, setup and data retrieval are seamlessly simple—no cables or additional download devices needed using the free HOBOconnect app on your phone or tablet. Effortlessly configure the logger and download data via Bluetooth (up to a 100 ft range), which allows you to deploy in and download data from hard-to-reach spots.
Expand your remote monitoring by adding an MX Data Plan, which allows you to upload data to LI-COR Cloud remote software for further analysis, sharing, and more.
Features
Wireless Bluetooth Data Offload
Fast, easy logger setup and download via phone or tablet (up to ~100 ft range)
High-Accuracy PAR Measurements
Integrated LI-COR PAR sensor delivers research-grade light intensity readings for both sunlight and indoor grow light conditions
Integrated Temp & RH Monitoring
Logged temperature and humidity alongside PAR enables calculation of VPD for a complete view of greenhouse climate conditions
Rugged, Weatherproof Design
Durable IP67/NEMA 6 housing stands up to humid, wet, and dusty environments found in greenhouses, growth chambers, or outdoor field sites
Long Battery Life & Memory
User-replaceable battery lasts up to ~2+ years and ample data storage supports extended deployments
Alarms and Alerts
See out-of-range conditions with logger's LED readout, and configure threshold alerts using HOBOconnect for proactive monitoring
Easy Deployment
Users can deploy the logger in minutes, configure logging intervals via the HOBOconnect app, and wirelessly retrieve data (without a laptop) in the field!
Specifications
Temperature Sensor
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-40 to 70°C (-40 to 158°F)
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±0.2 °C (typical) within -40 to 70 °C
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0.008°C (.014 °F)
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<0.01°C (0.018°F) per year
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17 minutes in air moving 1 m/sec
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24 minutes in air moving 1 m/sec
Range
Accuracy
Resolution
Drift
Response Time* Without Solar Radiation Shield
Response Time* With Solar Radiation Shield
Relative Humidity (RH) Sensor
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0 to 100% RH, -40° to 70 °C exposure to conditions below -20°C (-4°F) or above 95% RH may temporarily increase the maximum RH sensor error by an additional 1%
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±2.5% from 10% to 90% (typical) to a maximum of ±3.5% including hysteresis at 25°C (77°F); below 10% RH and above 90% RH ±5% typical
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0.01% RH
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<1% per year typical
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30 seconds in air moving 1 m/sec
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40 seconds in air moving 1 m/sec
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Vapor Pressure Deficit (VPD) in kPa, and Dew Point (computed from logged data)
Range
Accuracy
Resolution
Drift
Response Time* Without Solar Radiation Shield
Response Time* With Solar Radiation Shield
Calculated Metrics
Photosynthetically Active Radiation (PAR)
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0 to 3,000 μmol/m²/s (full sunlight)
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±5% typical (LI-COR LI-190R factory calibration)
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+/-1 μmol
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0.1 μmol/m²/s
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400–700 nm (PAR waveband)
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Maximum deviation of 1% up to 3,000umol/m2/s
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<= 2% change over one year
Range
Accuracy
Offset
Resolution
Spectral Range
Linearity
Stability
Soil Moisture: Volumetric Water Content (VWC)
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0.00 to 1.0 m³/m³ VWC in mineral soils
0.00 to 1.0 m³/m³ VWC in soilless media
Apparent Dielectric Permittivity: 1 (air) to 80 (water) -
±0.03 m³/m³ typical
±0.06 m³/m³ maximum
Apparent Dielectric Permittivity: ±1 Ɛa -
0.001 m³/m³
Apparent Dielectric Permittivity: 0.002 Ɛa -
70 MHz
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1400 ml
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Range: 0 to 200%
Resolution: 0.1%
Measurement Range (select one at configuration)****
Accuracy
Resolution
Dielectric Measurement Frequency
Volume of Influence
Percent of Field Capacity (for VWC measurements only)
Soil Temperature*****
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-40 to 70°C (-40 to 158°F)
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±0.5°C from -40° to -20°C
±0.3°C from -20°C to 70°C -
0.1°C (0.18°F)
Measurement Range
Accuracy
Resolution
Soil Bulk Electrical Conductivity (EC)
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0 to 20000 µS cm-1
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±5 % from 0 to 10000 µS cm-1
±8 % from 10000 to 20000 µS cm-1 -
1 µS cm-1
Measurement Range
Accuracy
Resolution
Logger
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-40 to 70°C (-40 to 158°F)
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1mW (0 dBm)
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Approximately 30.5 m (100 ft) line-of-sight
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Bluetooth Low Energy (Bluetooth Smart)
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1 second to 18 hours
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Fixed interval (normal, statistics) or burst
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Wrap when full or stop when full
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Immediate, push button, date & time, or next interval
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When memory is full, push button, date & time, or after a set logging period
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±1 minute per month 0° to 50°C (32° to 122°F)
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2/3 AA 3.6 Volt lithium, user replaceable
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2 years, typical with logging interval of 1 minute and Bluetooth Always On enabled; 4 years, typical with logging interval of 1 minute and Bluetooth Always On disabled. Faster logging intervals and statistics sampling intervals, burst logging, remaining connected with the app, excessive downloads, and paging may impact battery life.
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195,000 measurements, maximum
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Approximately 4-5 minutes; may take longer the further the device is from the logger
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Logger housing: 10.8 x 5.08 x 2.24 cm (4.25 x 2.0 x 0.88 in.)
Soil moisture sensor (only): 4.6 × 4.6 × 10.9 cm (1.81 × 1.81 × 4.31 in)
Soil moisture sensor needle length: 5.4 cm (2.14 in)
Soil moisture sensor needle diameter: 0.40 cm (0.16 in)
Sensor cable length: 2 m (6.56 ft) -
333 g11.8 oz
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490 g(17.3 oz
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Acetal, silicone gasket, stainless steel screws
Soil Moisture Sensor: ASA plastic body with polyurethane epoxy filling and stainless-steel pins
Cable: PVC, UV resistant and rodent repellent (soil moisture sensor cable) -
Logger: NEMA 6 and IP67
Soil Moisture sensor and cable: xxxx
Operating Range
Radio Power
Transmission Range
Wireless Data Standard
Logging Rate
Logging Modes
Memory Modes
Start Modes
Stop Modes
Time Accuracy
Battery Type
Battery Life
Memory
Full Memory Download Time
Dimensions
Weight (Unpackaged)
Weight (Packaged)
Materials
Environmental Rating
* Typical, up to 90% of change
** Per RH sensor manufacturer data sheet
*** Calibrated against an Eppley Precision Spectral Pyranometer (PSP) under natural daylight conditions. Absolute uncertainty under these conditions is ± 3% typical; ± 5% maximum.
**** The sensor data can be post-calibrated if necessary (e.g. the sensor is used in non-mineral soil types or higher than standard accuracy is required). Users can apply a calibration equation to the data exported from HOBOlink. The VWC range will depend on the calibration equation.
***** For additional accuracy, the sensor data can be post-calibrated for a particular soil by applying a calibration equation to the data exported from the app.
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