We worked closely with our suppliers to bring you the M400 PAR Meter and Spectrometer — a cutting-edge tool engineered for precision, stability, and performance. Built with a high-speed CPU and a high-precision CCD optical sensor, it uses a long focal cross asymmetric CT spectroscopy system to deliver results that rival lab-grade instruments.
380nm - 780nm Accuracy withing 5% of Apogee and $2000+ lab ppfd meters.
Most PAR meters cost $500+ for basic PPFD readings only. The M400 gives you full spectral analysis at a fraction of the price.
💻 Data Export Option: You can download spectral data using our beta software (3rd-party developing). Please Note: functionality is limited, may not work on all computers, and support is not currently available as it is 3rd party Beta right now. Click here
Key Features
Advanced Optical Technology
2nm optical resolution for precise measurements
Wide wavelength range (380–780nm) for complete spectral coverage
Stable, consistent performance
Electronic Shutter System
Minimum integration time: 50 μs
Detects both strong and weak optical signals
Adjustable integration for versatility
Portable, Durable Design
Lightweight, all-aluminum alloy body
Modern, compact form factor
Open Operating System
Upgraded OS with source code access
Unlimited upgrade potential
Intuitive Interface
3.5" HD IPS capacitive touchscreen
Realistic graphics, smooth operation
User-friendly display and navigation
Convenience + Power
Quick on/off and one-click testing
24-hour battery life for extended use
Function Capabilities
PPFD PAR: Photosynthetic Photon Flux Density measurement
Spectral Distribution Map: Full spectral profile
Color Temperature (Tc K): Accurate lighting analysis
Illuminance (E lx): Lux measurement
Irradiance (Ee W/m²): Light intensity
Chromaticity Coordinates (x,y)
Relative Spectral Power Distribution P(λ)
CRI (Ra, Ri 1–15): Full-spectrum color rendering accuracy
Chromaticity & Color Tolerance Maps
Wavelength Data: Main, peak, half width
Color Ratios: Purity, red, green, blue analysis
Export Capability: Per-nanometer spectral data
Technical Specifications
Model: M400 Spectral Color Illuminometer
Wavelength Range: 380–780nm
System: Long focal cross asymmetric CT split beam
Sensor: High-precision CCD
Spectral Bandwidth: 2nm (FWHM)
Resolution: 0.2nm
Wavelength Accuracy: ±0.5nm
x,y Accuracy: ±0.0015 (±0.0005 repeatability)
Illuminance Range: 0.1 lux – 2,000 Klux
CRI Accuracy: ±1.5%
Screen: 3.5" IPS HD touch display
Color Temp Range: 1,000K – 100,000K
Battery Life: 24 hours continuous testing
🔬 Whether you’re a professional grower, researcher, or lighting enthusiast, the M400 PAR Meter & Spectrometer redefines accuracy, portability, and value. It’s the future of cannabis lighting measurement — at a price that makes sense.
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