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UPRtek MK350N Premium Spectrometer


The MK350N Premium Spectrometer is a lightweight, portable, and easy-to-use Spectral Illuminance (LUX) Meter or Spectral Light Meter. It is designed for fast and accurate illuminance measurements of general lighting and LED applications.  Designed to be intuitive and user-friendly, it is ideal for measuring general light parameters such as LUX, CCT, CRI, CIE Chromaticity Coordinates, Ra, R1 to R15, Wavelength, and many others.  The MK350N Premium includes an integrated Flicker Meter


  • 3.5” Color touch screen control interface; easy to use Wifi remote control via Smartphone or tablet apps (IOS and Android)
  • NEW – Embedded with high speed Flicker sensor.
  • High speed, stable, accurate using advanced CCD spectral technology
  • More than 40 units of measurement including LUX, CRI, CCT, Ra, R1-R15, CIE Chromaticity Coordinates, Peak and Dominant Wavelength, and many others.
  • Stand alone Spectral Light meter – no other equipment necessary (e.g., PC, Smartphone, etc.)
  • 380 to 780nm measurement range
  • NIST Traceable calibration with optional NVLAP ISO 17025 certified calibration.
  • Only 225g – Light and easy to carry. Measure anytime, anywhere
  • SD card storage, easy to transfer data
  • Built-in file browser allows for quick access to previously saved data
  • 2-year product warranty
  • Package contents: MK350N Premium, hard case, protection bag, battery, USB cable, power adapter, neck strap, stand bracket, User Manual & Warranty booklet
Sold by Gamma Scientific as the exclusive distributor of UPRtek Handheld Spectrometers in the U.S. and Canada.


Need help? Contact us:
800-637-2758 :


MK350N Premium Handheld Spectrometer
Advanced upgrades in operation and speed
Embedded with CCD spectral technology
Optimized LUX measurement range

3.5” Color Touchscreen and all new icon design
Clear and concise interface with intuitive menu and icons.
Combines a spectral Illuminance light meter and a flicker meter in a compact, portable package.

Flicker, all lights have it.
Sometimes you can see it, sometimes you can’t.
Most lighting products have dimming or circuit control systems that can cause flicker problems.

●Flicker can lead to headaches and induced epilepsy attacks.
●Visual fatigue can result in reduced task performance and lead to distraction.
●Video image shooting quality can be reduced, increasing post-production cost.

Use the MK350N Premium Spectrometer to fight flicker issues.
Compliant with “IES/ASSIST/ENERGY STAR” international measuring standards.

Sampling rate up to 100kHz to capture flicker parameters, light amplitude and light frequency.
Suitable for lighting professionals with strict quality requirements.

New Revolution-We are used to measuring light quality by traditional parameters such as CRI, GAI, and CQS.
MK350N Premium includes the TM 30-15 Color Rendering Index,
the new method published by IES in 2015
and provides the objective lighting evaluation needed by today’s lighting designers and manufacturers.

Build a bridge to the 4.0 industry.
Save time and reduce manufacturing costs.
Efficient USB connectivity up to 16 times faster.
Efficiency, Speed, Flexibility
MK350N Premium, the spectral light meter for lighting and LED applications.

Free Download of Mobile and iPad application to experience the convenience of wireless remote control.
MK350N Premium PC uSpectrum and uFlicker software for easy data analysis.
Enables convenient flicker measurement for various artificial light sources.


Additional Information

Weight5.07063 lbs
Dimensions1.08268 x 5.51181 x 7.48031 in


SensorCMOS Linear Image Sensor
Wavelength Range380 to 780 nm
Wavelength Data Increment1 nm
Spectral BandwidthApproximately 12 nm (Half Bandwidth)
Wavelength Reproducibility± 1 nm (Input source must be a stable light source.)
Measurement Range5 to 100,000 lx
Illuminance AccuracyIlluminant A @ 2,856 K at 20,000 lx (Temperature 23±2℃ and relative humidity 50% or less.)± 2.5%
Illuminance Repeatability (2σ)0.2% (100 ~ 100,000 lx)
0.5% (5 ~ 100 lx)
Color Accuracyx y: ± 0.002 (100 to 100,000 lx)
x y: ± 0.0025 (5 to 100 lx)
Color Repeatability± 0.0005 in CIE 1931 x,y
Color Repeatability (2σ)x y: 0.0002 (500 to 100,000 lx)
x y: 0.0004 (30 to 500 lx)
x y: 0.001 (5 to 30 lx)
CCT Accuracy± 2%
CRI Accuracy @ Ra± 1.5%
Stray Light-25 dB max. (Input the 550nm monochromatic light and measure the stray light ratio at 550nm ± 40nm.)
Integration Time Range100us to 1,000 ms
Digital Resolution16 bits
Measurement Range5 to 100,000 lx
Sampling Rate100k sample/sec
Frequency Range5 to 50k Hz
Frequency Resolution2, 4, 8, 16, 32 Hz
Flicker Accuracy± 5%
Capture FunctionOne time / Continuous
Operation ModeStandalone Mode / WiFi Mode (It can be connected to mobile phones and tablets.) /
USB Mode (MSC Mode (MSC- Mass Storage Class.) + PC connection)
Integration ModeAuto/Manual
Measuring Modes1. Basic Mode
2. Spectrum Mode
3. CRI Mode
4. CIE 1931 / 1976 Chromaticity Mode
5. TM-30-15 Mode
6. Flicker Mode
7. Frequency Mode
8. Browser Mode
9. Option Mode
Measuring Capabilities1. Illuminance (LUX) / Foot Candle (fc)
2. Correlated Color Temperature (CCT)
3. CIE Chromaticity Coordinates
(1) CIE 1931 x,y Coordinates
(2) CIE 1976 u’,v’ Coordinates
(3) CIE 1931 XYZ Value
4. △x , △y , △u’ , △v’
5. Delta uv (Duv)
6. Dominant Wavelength (λd)
7. Excitation Purity
8. Color Rendering Index (CRI, Ra) / R1 to R15
9. Color Quality Scale (CQS)
10. Television Lighting Consistency Index (TLCI)
11. TM-30-15 (Rf, Rg, Color Vector Graphic)
12. Flicker Frequency
13. Percent Flicker
14. Flicker Index
15. Stroboscopic Effect Visibility Measure (SVM)
16. Spectral Power Distribution (SPD) mW/m2
17. Peak Wavelength (λp)
18. Peak Wavelength Value (λpV)
19. Intergration Time (I-Time)
20. Scotopic and Photopic Ratio (S/P)
System Configurations
Display3.5″ 320X240 Resistive Touch LCD
Max. Files≒ 68,000 Files @ 8GB SD Card (Excel + JPG)
Battery Operation Time≦ 5 hours / Fully Charged
PowerAdapter; 2500 mAh (3.7V Rechargeable Li-ion Battery)
Data Output InterfaceSD Card (SD2.0,SDHC/up to 32G) /
Mini USB Port (USB 2.0) /
WiFi SD Card compatible with iOS and Android
Data FormatCompatible Excel / JPG
Dimensions147.5 x 78 x 24 mm (H x W x D)
Weight (with Battery)225 g ± 10 g
Operating Temperature /
0 to 35 ℃,
relative humidity 70% or less without condensation
Storage Temperature /
-10 to 40 ℃,
relative humidity 70% or less without condensation
Display languagesEnglish / Traditional Chinese / Simplified Chinese / Japanese / Spanish / German / French / Italian / Russian
Cosine Correction

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