Nippon Medical & Chemical Instruments Co., Ltd. is a manufacturer specializing in environmental control, medical device, and scientific instruments.
Affordable and Convenient Light Analyzer with High Precision
Light Analyzer complies with Class AA of JIS C 1609-1:2006.
Available from April 2026!
●PPFD (400–700nm) value ●PFD (350–800nm)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

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) |
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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. |
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Literatures using Light Analyzer
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)