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LED spectrometer ASP-MK350


REPLACED BY NEW Lighting Passport

Device features:

  • Illuminance, Lux reading
  • Color or monochrome available
  • Color Temperature
  • LED light measurement
  • Spectral Response
  • Color coordinates C.I.E.
  • Integrated Diffuser corrector
  • With LCD Color Screen
  • Small and easy to carry
  • 3.5″ touch screen interface
  • Data transfer to SD card in image format  .bmp and .xls
  • Battery autonomy 4-5 hours average
  • CE approved
  • Tested performance by Calibration National Lab
  • In Stock and shipping anywhere in the world
  • 30 days money back warranty
  • Perfect replacement for Minolta CL-500A
  • How to buy this product in my country?
SKU: ASP-MK350-LUX. Category: . Tags: , , , .

Product Description

Clients who bought our ASP-MK350:

Our spectrophotometer has a cosine corrector and is calibrated to measure illuminance and spectral response of light sources. It can be used as a quick, handheld device to verify center, dominant, and centroid wavelengths, intensity, and color of LED and other light sources. Compact spectrometer with performance.


This spectroradiometer is useful for any type of light emission engines in the visible range such as laser, diode laser, LED, OLED,projector light source, tungsten, Halogen, solar studies, photo-stability testing, and photobiology and fluorescence, phosphorescence applications.

Video #1



Feature ASP-MK350
Detector Type CMOS Linear Image Sensor
Spectral Bandwidth Approx. 12 nm
Cosine Area 6.6 ± 0.1 mm
Measurement Range 70 ~ 70000 Lux
Wavelength Range 360 ~ 750 nm
Exposure Time Range 8 ~ 1000 ms
Capture Mode Once / Continue
Integrating Mode Auto / Manual
Measuring Modes 1. Basic Value Mode
2. Spectrum Graph Mode
3. C.I.E 1931 Chromaticity Dragram Mode
4. C.I.E 1976 U.C.S Chromaticity Dragram Mode
Measuring Capabilites 1. Illuminance / Lux
2. Spectral Irradiance
3. C.I.E Chromaticity Coordinates
    (1) C.I.E 1931 x,y Coordinates
    (2) C.I.E 1976 U.C.S u’,v’ Coordinates
4. Peak Wavelength
5. Correlated Color Temperature; CCT ( in Kelvins )
6. Color Rendering Index; Ra ( Rendering Average )
Digital Resolution 16 bits
Dark Calibration Yes
Stray Light -25 dB max.
( When monochromatic light of the 550nm wavelength is input, spectral stray light is defined as the ratio of count measured at the input wavelength, to the measured in a region of the input wavelength ± 40nm. )
Wavelength Data Increment 1 nm
Wavelength Reproducibility ± 0.5 nm
( Measured under constant light input conditions )
Illuminance Accuracy Illuminant A @ 2856k at 20000 lux ± 5%
Color Accuracy ± 0.002 in CIE x,y
Color Repeatability ± 0.0005 in CIE x,y
CCT Accuracy ± 2%
CRI Accuracy @ Ra ± 1.5%
Display 3.5″ LCD 320X240 Touch Panel
Max. Files @ 2GB SD Card ≦ 250000 Files
Battery Operation Time ≦ 5 hours / One Full Charge
Battery 2500 mAh / Reachargeable Li-ion Battery
Date Output Interface SD Card / USB 2.0
Data Format Compatible MicroSoft Office Excel Date Format
Dimensions 144.2 x 78 x 24 mm ( H x W x D )
Weight ( with Battery ) 250 g ± 20 g
Operating Temperature Range 0 ~ 35 °C
Storage Temperature Range -10 ~ 40 °C

User Manual

CE Certification

Calibration National Lab Test Report

Spectrum Genius Standard Version 2.0

Spectrum Genius User manual

SD card is not included

Video # 3

SI photometry units
Quantity Symbol[nb 1] SI unit Symbol Dimension Notes
Luminous energy Qv [nb 2] lumen second lm⋅s T⋅J [nb 3] units are sometimes called talbots
Luminous flux Φv [nb 2] lumen (= cd⋅sr) lm J also called luminous power
Luminous intensity Iv candela (= lm/sr) cd J an SI base unit, luminous flux per unit solid angle
Luminance Lv candela per square metre cd/m2 L−2⋅J units are sometimes called nits
Illuminance Ev lux (= lm/m2) lx L−2⋅J used for light incident on a surface
Luminous emittance Mv lux (= lm/m2) lx L−2⋅J used for light emitted from a surface
Luminous exposure Hv lux second lx⋅s L−2⋅T⋅J
Luminous energy density ωv lumen second per metre3 lm⋅sm−3 L−3⋅T⋅J
Luminous efficacy η [nb 2] lumen per watt lm/W M−1⋅L−2⋅T3⋅J ratio of luminous flux to radiant flux
Luminous efficiency V 1 also called luminous coefficient
See also: SI · Photometry · Radiometry


Additional Information


No Options, Extra Battery, Extra year warranty, Recalibration, Extra battery + Extra year warranty, Extra Battery + Recalibration, Recalibration + Extra year warranty, Extra Battery + Recal. + Extra year warranty


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