Illuminance Meter ASP-MK350

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  • Now with  free unique software for data analysis and reporting
  •  30 days money back warranty
  • Illuminance, Lux reading 
  • Discontinued - Replace byLighting Passport Spectrometer


US$ 2295.00 2295.0 USD

US$ 2295.00

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 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.


Additional Features:

  • Color or monochrome available
  • Color Temperature
  • LED light measurement
  • Spectral Response
  • Color coordinates C.I.E.
  • Integrated Diffuser corrector
  • 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
  • Perfect replacement for Minolta CL-500A



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.



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

SD card is not included

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

Illuminance Meter ASP-MK350

Illuminance Meter ASP-MK350

Illuminance Meter ASP-MK350

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