Products

Light Analyzer LA-106

Affordable and Convenient Light Analyzer with High Precision
Light Analyzer complies with Class AA of JIS C 1609-1:2006.

Features

Available from April 2026!

●PPFD (400700nm) value  ●PFD (350800nm)value       

      ●Ultraviolet region (350–400nm) value    ●Blue region (400–500nm) value 

      ●Green region (500–600nm) value        ●Red region (600–700nm) value 

      ●Far-red to infrared region (700–800nm) value

      Measures, displays, and data-logs values across 5 wavelength bands.

1.  Expanded spectral wavelength range

LA-105’s range was 380–780 nm, but the LA-106 now covers 350–800 nm, enabling measurement down to 350 nm in the ultraviolet region. 

2.  Reduced logging interval

Minimum logging time shortened from 10 seconds to 1 second (PC connection only).

3.  Automatic dark correction per measurement

Added function performs automatic dark correction for every measurement.

 

 Light Analyzer (LA-106), specially designed for light sources for plants, can easily measure various light sources.

 Photosynthesis in plant growth highly depends on the quality of light. Various morphogenesis is controlled from seeds to fruition during the plant growth. This hotomorphogenesis is known to require various kinds of light, and thus the light should be precisely measured as photon flux.

 Light Analyzer (LA-106) makes it possible to precisely measure photon flux at each wavelength. In monochrome light sources including LED, the best light source and/or photon flux can be selected for plant growth by measuring PPFD.*

 Light Analyzer (LA-106) is equipped with a 3.5 inch touch panel and easy-to-use interface. The optical part can be separated from the main body. The data can be stored in a SD card. The obtained data can be easily controlled with dedicated software by connecting LA-106 to a personal computer via USB cable.

*PPFD: Photosynthetic Photon Flux Density

Download of the Instruction Manual

 

Specifications

Optical characteristics

Light-Receiving Sensor CMOS Linear Image Sensor
Illuminance meter class Class AA of JIS C 1609-1:2006
Wavelength Range 350 to 800 nm Accuracy at 2,856K, 20,000 lx (Standard Light Source A *2) ±5% 
Wavelength Data Increment 1 nm Color Accuracy ±0.0025 in CIE 1931 x,y
Spectral Resolution Approx. 12 nm (half bandwidth) Color Repeatability 0.0005 in CIE 1931 x,y
Optical Section Inner Diameter φ6.9 ± 0.1 mm Correlated Color Temperature Accuracy ±2%
Wavelength Repeatability ±1 nm *1 Color Rendering Index Accuracy @ Ra ±1.5%
Measurement Range (1) 70 to 150,000 lx (illuminance)   (2) 0.5 to 1,000 Wm-2 (irradiance)    (3) 1 to 3,000 μmolm-2s-1 (photon flux density)
Exposure Time 60μs to 1,000 ms
Digital Resolution 16 bits
Measuring mode Single/Continuous (logging mode)
Dark Correction Automatic/Manual
Operation mode Standalone Mode / USB Mode (MSC Mode *3 + PC Connection Mode)
Exposure mode Automatic/Manual
Display mode (1) Basic mode   (2) spectral mode   (3) PFD   (4) PPFD   (5) CIE mode   (6) Logging mode
Measuring Capabilities

(1) Illuminance / Footcandle (fc)   (2) Correlated Color Temperature (CCT)   (3) CIE Chromaticity Coordinates   (i) CIE 1931 x,y coordinates   (ii) CIE 1976 UCS u’,v’ coordinates   (4) Δx, Δy, Δu’, Δv’   (5) Δuv (Duv)   (6) Dominant Wavelength (λd)   (7) Excitation Purity   (8) Color Rendering Index (CRI/R1 to R15)   (9) Spectral Power Distribution (SPD)   (10) Peak Wavelength (λp)   (11) Peak Wavelength Value (λpV)   (12) Radiance (350–800 nm) (W/m²)   (13) Photon Flux Density   PPFD (400–700 nm)   PFD-R (600–700 nm)   PFD-G (500–600 nm)   PFD-B (400–500 nm)   PFD (350–800 nm)   PFD-UV (350–400 nm)   PFD-FR (700–800 nm)

 System Configuration  

Display 3.5 320 × 240 Touch LCD Dimensions 196H × 78W × 30D mm
Maximum File Count 16 GB SD card: approx. 78,000 files (Excel + JPG) Weight (with battery) 276 g ± 20 g
Battery Operation Time ≦ 5 hours when fully charged Operating Temperature Range 0 to 35 ℃
Battery 2,500 mAh (3.7 V rechargeable lithium-ion battery) Storage Temperature Range -10 to 40 ℃
Interface SD card (SD 2.0, SDHC / 1–32 GB) / USB 2.0 Display languages English / Japanese / Chinese / German
Saved Data Excel / JPG file format *1: Input light source must be stable.         *2: Temperature 23 ± 2 ℃, relative humidity ≤ 50%.
*3: MSC – Mass Storage Class                   Specifications subject to change without notice.

Literatures using Light Analyzer

Methods for Teaching Light Wavelength Dependencies on Seed Germination and Seedling Elongation Applicable for High School Experimental Class in Developing Countries (2020)

Photo-movement of coral larvae influences vertical positioning in the ocean (2021)

Fillable and unfillable gaps in plant transcriptome under field and controlled environments (2022)

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