LI-600 and LI-600N Specifications

General

Measurement time:
- Porometer: 5 to 15 seconds typically, depending on species, leaf or needle surface characteristics, and conditions
- Fluorometer: 1 second
Operating conditions:
- Temperature: 0 to 50 °C
- Pressure: 50 to 110 kPa
- Humidity: 0 to 85%; non-condensing
Weight: 0.68 kg (porometer only); 0.73 kg with fluorometer
Dimensions: 32.4 cm × 16.9 cm × 6.2 cm (L × W × H)
GPS: Accuracy 2.5 m CEP
Display:
- Dimensions: 6.8 cm diagonally
- Resolution: 400 × 200 pixels; sunlight readable monochrome
Keypad: 5-button membrane pad
Battery:
- Built-in Li-ion
- Operating hours: 8 hours typically
- Capacity: 5200 mAh
- Recharging time: 3.5 hours typically; 2 hours with Qualcomm^® Quick Charge™ 2.0 or 3.0
Data storage: 128 MB
USB specifications: Communication/charging interface: Micro-B Qualcomm^® Quick Charge™ 2.0 or 3.0 for rapid charging
Universal charging adapter:
- Input: 90 to 264 VAC; 50 to 60 Hz
- Output: 5 VDC; 1 Amp
Configuration software: Windows^® and macOS^® applications
Data output: Plain text files (comma or tab-delimited) and an .xlsx file with embedded equations.
Barcode scanner: 1-D and 2-D, including Code 39, Code 128, PDF417, 100% UPC, Data Matrix, QR Code
Photosynthetically Active Radiation (PAR) measurement:
- Units: Photosynthetic Photon Flux Density (PPFD); µmol m^-2 s^-1
- Calibration accuracy: ±10% of reading; traceable to NIST
- Cosine correction: Cosine corrected up to 60° angle of incidence

*High flow may not be achievable at higher altitudes
Specifications are subject to change without notice

Porometer

Leaf and needle sizes:

LI-600:

Length and width: 7.5 mm minimum
Thickness: 2.8 mm maximum

LI-600N:

Width: 1-3.5 mm
Length: 14.2 mm minimum
Thickness: 2.8 mm maximum

Flow rates:
- Low: 75 µmol s^-1
- Medium: 115 µmol s^-1
- High: 150 µmol s^-1*
RH sensor accuracy: ±2% RH
Reference temperature: ±0.2 °C
Leaf temperature sensor accuracy: ±0.5 °C
Inlet flow measurement: ±1% of reading from 75 µmol s^-1 to 150 µmol s^-1
Exhaust flow measurement: ±5% of full scale up to 150 µmol s^-1
Parameters:
- g_sw mol m^-2 s^-1; g_bw mol m^-2 s^-1; g_tw mol m^-2 s^-1; E mmol m^-2 s^-1
- VP_cham kPa; VP_ref kPa; VP_leaf kPa; VPD_leaf kPa
- H₂O_ref mmol mol^-1; H₂O_samp mmol mol^-1; H₂O_leaf mmol mol^-1

Fluorometer

Flash types: User configurable Rectangular and Multi-phase Flash™ (MPF)
Measuring light peak wavelength: 625 nm
Measuring light peak intensity: 0 to 10,000 µmol m^-2 s^-1
Flash intensity: 0 to 7500 µmol m^-2 s^-1
LED risk group: Exempt group in acc. with IEC 62471:2006. The LED does not pose any photobiological hazard
Parameters:
- F_o; F_m; F_v; F_v/F_m; F_s; F_m’; Φ_PSII; ETR

*High flow may not be achievable at higher altitudes
Specifications are subject to change without notice