Specifications

  • Temperature
  • Relative Humidity
    • Calibrated Operating Range: 0 to 85% RH
    • H2O Mole Fraction Range: 0 to 60 mmol/mol
    • H2O Mole Fraction Accuracy: 2% of reading at > 5 mmol/mol
    • Deployed Non-Operating Range: 0 to 85% RH
  • Pressure
    • Operating Pressure Range: 50 to 110 kPa
    • Ambient Pressure Accuracy: ±0.2 kPa
  • Inlet Flow Rate: 230 cm3/min (typical)
  • Communication: SDI-12
  • Power Requirements
    • Voltage: 9 to 33 VDC
    • Power: ≤1.5 W nominally; up to 26.4 W for 20 milliseconds during startup
  • Weight: 1.4 kg
  • Dimensions: 58 × 17.5 × 7.7 cm (H × L × W)
  • Mount: 1 inch (2.54 cm) diameter post; compatible with 1 inch (2.54 cm) crossover fittings
  • Weatherproof Rating: Tested to IEC IP54
  • Installation Requirements
    • Separation Between LI-710s: ≥2 meters
    • Mounting Height: >1 meter above the plant canopy
Figure 10‑1. LI-710 dimensions.
Table 10‑1. Parameters measured and computed by the LI-710 as 30-minute averages.
Variable Description Unit
ET Evapotranspiration mm
LE Latent Energy Flux W/m^2
H Sensible Heat Flux W/m^2
VPD Vapor Pressure Deficit kPa
PA Atmospheric Pressure kPa
TA Air Temperature °C
RH Relative Humidity Ambient %
AH Absolute Humidity Ambient g/m^3
SVP Saturated Vapor Pressure Ambient kPa
TD Dewpoint °C

IoE Module

General

  • Operating Temperature Range: -25 to 50 °C
  • Operating Humidity Range: 0 to 95%, non-condensing
  • Storage Temperature Range: -40 to 65 °C; 85% RH
  • Ingress Protection: IP24 Rating
  • Enclosure Flame Rating: UL94-V-0
  • GNSS (GPS) Support: GPS receiver for time synchronization and location information.
  • Display: 35 x 55 mm; monochrome

Auxiliary power input

  • Input Voltage Range: 9 to 33 VDC (>11 V recommended for startup)
  • Maximum Current: 3.0 A

Digital inputs/outputs

  • SDI-12 ports: 2
    • Output Voltage: 12 V
    • Maximum Total Current: 2.5 A
  • Sensor Ports (SDI-12 'plus'): 1 (combined SDI-12 with fast serial T/R)
  • USB port: Micro-B connector

Structure and load

  • Ground Area Required:
    • Without Guy Wires: 42 × 107 cm (16.25 × 42 inches)
    • With Guy Wires at 15°: 244 × 244 cm (96 × 96 inches)
  • Maximum Load on Mast: 4.54 kg (10 lbs.)
  • Maximum Battery Weight: 45.4 kg (97 lbs.)
  • Soil Types for Anchors: 1 to 4

Weights

  • System (total): <45.4 kg (<100 lbs.)
  • Battery: 24.9 kg (55.0 lbs.)
  • Solar Panel: 7.5 kg (16.5 lbs.)
  • Frame: 13 kg (28.7 lbs.)

Data

  • Data Storage: Removable Micro SD card; 8 GB. If the modem is offline, data are stored until connectivity is restored (storage for 2 weeks of data).
  • Data Format: Text; Comma-separated values (CSV)

Cellular

  • Wireless Protocols: LTE CAT1

Specifications subject to change without notice