HOBO™ MX2311 Outdoor Bluetooth Solar Radiation and Soil Moisture Data Logger
SKU
MX2311
Special Order
$825.00
- Sensors for Solar Radiation, Soil Moisture, Humidity and Temperature Measurements
- 0 to 1280 W/m2, 0 to 1.0 m3/m3, -40°C to 70°C and 0 to 100% RH Measurement Ranges
- User-Replaceable Lithium Battery with 2 Year Typical Life (1 Minute Sampling Rate)
- Stores up to 195,000 Measured Readings with Date/Time Stamp if Bluetooth Communications Not Available
- Wireless Transmission of Recorded Readings to Phone or Tablet Using Bluetooth or Li-Cor Cloud with MX Data Plan (Sold Separately)
HOBOconnect App Available on the Apple Store (iOS) and Google Play (Android)
Special order - please note lead times for some items can take up to 8 weeks
Overview of the MX2311 Solar Radiation, Soil Moisture and Humidity Data Logger
The HOBO™ MX2311 Bluetooth Solar Radiation, Soil Moisture, Humidity and Temperature Data Logger is an advanced environmental monitoring solution designed for researchers, growers, agronomists, and environmental professionals. The MX2311 data logger measures accumulated solar radiation, daily light integral, soil electrical conductivity (EC), volumetric water content (VWC), soil temperature, air temperature, and relative humidity in a single integrated device. Featuring Bluetooth Low Energy connectivity and the HOBOconnect® app, users can easily configure the data logger and download recorded readings from up to 100 feet away. Built with a durable TEROS 10 soil moisture sensor, the MX2311 delivers high-precision measurements for mineral soils and soilless growing media. The rugged, weatherproof design, long battery life, and cloud connectivity options make it ideal for precision agriculture, greenhouse monitoring, crop management, irrigation optimization, soil health analysis, and environmental research.
HOBO™ MX2311 Outdoor Bluetooth Soil Moisture and Temperature Data Logger Specifications
| Soil Moisture (Volumetric Water Content) |
Measurement Range (Mineral Soils): 0 to 1.0 m3/m3 Measurement Range (Soilless Media): 0 to 1.0 m3/m3 Measurement Range (Apparent Dielectric Permittivity): 1 (air) to 80 (water) Accuracy (Mineral Soils): ±0.03 m3/m3 Accuracy (Soilless Media): ±0.06 m3/m3 Accuracy (Apparent Dielectric Permittivity): ±0.06 m3/m3 Resolution: 0.001m3/m3 Resolution (Apparent Dielectric Permittivity): 0.002 &epilson;a Dielectric Measurement Frequency: 70 MHz Volume of Influence: 1400 ml |
| Percent of Field Capacity (VWC Measurements Only) |
Measurement Range: 0 to 200% RH Resolution: 0.1% RH |
| Soil Temperature | Measurement Range: -40°C to 70°C (-40°F to 158°F) Accuracy (-40°C to -20°C): ±0.50°C Accuracy (-20°C to 70°C): ±0.50°C Resolution: 0.1°C (0.018°F) |
| Soil Bulk Electrical Conductivity (EC) | Measurement Range: 0 to 20,000 µS cm-1 Accuracy (0 to 10,000 µS cm-1): ±5.0% Accuracy (10,000 to 20,000 µS cm-1): ±8.0% Resolution: 1 µS cm-1 |
| Global Solar Radiation (GSR) |
Measurement Range: 0 to 1280 W/m2 (Full Sunlight) Accuracy: ±3.0% Typical, ±5.0% Maximum Offset: ±0.5 W/m2 Resolution: 0.05 W/m2 Spectral Range: 400 to 1100 nm Linearity: Maximum Deviation of 1% Stability: &le2% Change Over 1 Year Temperature: -40°C to 65°C (-40°F to 149°F) Temperature Dependence: ±0.15% per °C Maximum Cosine Correction: Cosine Corrected up to 82° Angle of Incidence Azimuth: <±1.0% Error Over 360° at 45° elevation Tilt: No Error Induced from Orientation Detector: High Stability Silicon Photovoltaic Detector (Blue Enhanced) Sensor Housing: Weatherproof Anodized Aluminum Case with Acrylic Diffuser and Stainless Steel Hardware. O-Ring Seal on the Sensor Base Calculated Metrics: Accumulated Solar Radiation in MJ/m2, Daily Light Integral (DLI) of Solar |
| Humidity | Measurement Range: 0 to 100% RH Accuracy: ±2.5% (10% to 90%) to a Max ±3.5% including Hysteresis at 25C; ±5% (Other Range) Typical Response Time (w/o Solar Radiation Shield): 30 Seconds typical to 90% in open air Moving 1 m/s (2.2 mph) Response Time (w/ Solar Radiation Shield): 40 Seconds typical to 90% in open air Moving 1 m/s (2.2 mph) Resolution: 0.01% RH Drift: <1% per year Typical NOTE: Exposure to Conditions Below -20C or Above 95% RH May Temporarily Increase the Maximum RH Sensor Error by an Additional 1% |
| Temperature | Measurement Range: -40°C to 70°C (-40°F to 158°F) Accuracy: ±0.20°C (Typical) Resolution: 0.008°C (0.014°F) Drift: <0.01°C (0.018°F) per Year Calculated Metrics: Vapor Pressure Deficit (VPD) in kPa and Dew Point (Computed from Logged Data) Response Time: 17 Minutes in Air Moving 1 m/s; 24 Minutes in Air Moving 1 m/s with RS3-B Solar Radiation Shield |
| Data Storage Capacity | 195,000 Measurements (When Bluetooth Communications Not Available) |
| Logging Mode | Fixed Interval (Normal, Statistics) or Burst |
| Memory Mode | Wrap when Full or Stop When Full |
| Start Mode | Immediately, Push Button, Date & Time or Next Interval |
| Stop Mode | Wrap When Data Storage Full, Push Button, Date & Time or After Set Interval |
| LED Indicators | Alarm: Visual LED (Until Logger is Reconfigured or Within Limits) Status: Green |
| Sampling Rate | 1 Second to 18 Hours (User-Specified) |
| Power Source | 2/3 AA 3.6 Volt Lithium Battery (User-Replaceable) |
| Battery Life | Power Saving Mode Disabled: 2 Years typical @ 1 Minute Sampling Rate Power Saving Mode Enabled: 5 Years typical @ 1 Minute Sampling Rate Note: Dependent Upon Environment, Operating Range, Logging Interval, Remaining Connected with the App, Excessive Downloads and Paging My Impact Battery Life |
| Time Accuracy | ±1 Minute per Month 0C to 50°C (32°F to 122°F) |
| Communications | Type: Bluetooth Wireless Wireless Data Standard: Bluetooth Smart (Bluetooth Low Energy, Bluetooth 4.0) Transmission Range: Up to 30.5 Meters (100 ft) Line of Sight Radio Power: 1 mW (0 dBm) |
| Software | HOBOconnect App for iOS or Android Li-Cor Cloud Software Platform with Purchase of MX Data Plan NOTE: Bluetooth 4.0 is Required on your Mobile Device (Phone or Tablet) |
| Operating Range | Temperature: -25°C to 60°C (-13°F to 140°F) Humidity: 0 to 100% RH |
| Standards Compliance | IP67, NEMA 6 UV Rated (Weatherproof), FCC, CE, RoHS |
| Environment | Primarily Designed for Outdoor Usage |
| Materials | Data Logger: Acetal, Silicone Gasket, Stainless Steel Screws Humidity:ASA Plastic Body with Polyurethane Epoxy Filling and Stainless Steel Pins Cable: PVC, UV Resistant and Rodent Repellent (Soil Moisture Sensor Cable) |
| Weight | 333 grams (11.8 oz) |
| Dimensions | Logger Housing: 10.8 cm x 5.08 cm x 2.24 cm (4.25" x 2.0" x 0.88") Soil Moisture Sensor: 4.6 cm x 4.6 cm x 10.9 cm (1.81" x 1.81" x 4.31") Soil Moisture Sensor Needle: 5.4 cm x 0.40 cm (2.14" x 0.16") Solar Sensor Size: 2.36 cm x 3.63 cm (0.95" x 1.43") Solar Cable Length: 1.8 Meters Sensor Cable Length: 2 Meters (6.56 ft) |
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