Product Highlights
Enhanced screen resolution improvements from predecessor models, More than 30 light unit-of-measures to choose from, Standalone LED meter – no other equipment necessary (e.g. PC, Smartphone etc.)
UPRtek MK350S Advanced Spectrometer UPRtek MK350S Advanced Spectrometer
Web Availability: Special Order
This product will be Special Ordered just for you from the manufacturer. We do not stock this item due to its uniqueness or import schedule. Special Order items are Final Sale, see our Return Policy for details.
Vistek Locations
  • Toronto Special Order
  • Ottawa Special Order
  • Mississauga Special Order
  • Calgary Special Order
  • Edmonton Special Order
Please call and verify availability at the store as stock changes daily.

Lease this for: $174.23 Learn More



  • Enhanced screen resolution improvements from predecessor models
  • More than 30 light unit-of-measures to choose from
  • Standalone LED meter – no other equipment necessary (e.g. PC, Smartphone etc.)
  • Illumination distribution charts provide assistance in fixture design
  • “BIN” ranking features allow for fast CIE 1931 inspection and confirmation of LED quality
  • Visual aim ‘n click scope (on-screen viewport) - no more blind measurements
  • Automatic continuous measurements with data-save to a SD card
  • Easy, on-the-spot data comparison features – comparing 2 LEDs, or comparing against historical data
  • Maximum and minimum acceptable ranges for validating LED quality
  • “Built-in file browser allows users to instantly read data in saved files


Product Specifications

Sensor CMOS Linear Image Sensor
Spectral Bandwidth Approximately 12 nm(half bandwidth)
Receptor Size Ø 6.6 ± 0.1 mm
Cosine Correction refer Figure 1.
Measurement Range 20 ~ 70000 Lux
Wavelength Range 380 ~ 780 nm
Integration Time Range 6 ~ 5000 ms
Capture Function One time / Continuous
Integration Mode Auto / Manual
Measuring Modes 1. Basic Value Mode
2. Spectrum Graph Mode
3. CIE 1931 Chromaticity Diagram Mode
4. CIE 1976 U.C.S Chromaticity Diagram Mode
5. Coloe Rendering Index Mode
6. Lux Image Distribution Mode
7. Measuremenr Log Mode
8. CCT BIN Chart Mode
9. Quality Control Checker Mode
10. Measurement Comparison Mode
11. Data Browser Mode
Measuring Capabilities 1. CCT
2. Lux / Foot Candle
3. CRI Ra / R1~R15
4. Spectral Irradiance
5. C.I.E Chromaticity Coordinates
    (1) CIE 1931 x,y Coordinates
    (2) CIE 1976 U.C.S u',v' Coordinates
6. Peak Wavelength/Dominant Wavelength
7. ?x,?y,?u',?v'
8. duv, Purity
9. PPF(400nm~700nm)
10. BIN
Digital Resolution

16 bits

Dark Calibration Yes
Stray Light -25 dB max.
( Input the 550nm monochromatic light and measure the stray light ratio at 550nm ± 40nm. )
Wavelength Data Increment 1 nm
Wavelength Reproducibility ± 1 nm
( Input source must be a stable light source. )
Illuminance Accuracy Illuminant A @ 2856K at 20000 Lux ± 5%
Color Accuracy ± 0.0025 in CIE 1931 x,y
Color Repeatability ± 0.0005 in CIE 1931 x,y
CCT Accuracy ± 2%
CRI Accuracy @ Ra ± 1.5%
Display 4.3" LCD 800X480 Touch Panel
Camera Resolution 2M pixels
Max. Files ? 2000 Files @ 2GB SD Card
Battery Operation Time ? 4 hours / Fully Charged
Battery 2500 mAh / Rechargeable Li-ion Battery
Data Output Interface SD Card / USB 2.0
Data Format Compatible MicroSoft Office Excel / JPG Data Format
Dimensions 163 x 81 x 25.8 mm ( H x W x D )
Weight ( with Battery ) 250 g ± 5 g
Operating Temperature Range 0 ~ 35 °C
Storage Temperature Range -10 ~ 40 °C
Language Selection English / Traditional Chinese / Simplified Chinese / Japanese

Questions & Answers

UPRtek MK350S Advanced Spectrometer

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