The GS-1160B portable spectroradiometer is a compact, high-speed and light weight spectrometer / flicker meter suitable for color and luminance measurement of all display types including LCD, LED, OLED and Quantum Dot displays.

The GS-1160B platform’s cutting edge spectrometer technology is superior to filter based colorimeters as it is not affected by filter matching errors. It delivers true spectral based measurement accuracy that is required for the higher color saturation and wider color gamut of OLED displays. It’s advanced electronics and software design results in accurate and repeatable measurement speeds at more than 10X the speed of existing, status-quo spectrometers.

User interface options include USB and RS-232. Along with an available API command set for custom test suites, this desktop version of our handheld unit is ideally suited to applications in a laboratory or industrial setting. It is supported by LightTouch uSpectrum and uFlicker software for color and flicker analysis.

Accurate and Repeatable Display Measurement

  • Measures color, chromaticity, gamma, white balance, contrast, flicker and uniformity
  • Luminance measurement from 0.05 to 5,000 cd / m2
  • Color measurement in chromaticity including x/y/u’/v’, XYZ, x10, y10, u10 and v10
  • Wide range of flicker measurement, including JEITA, VESA, Contrast (min/max), rms, time domain and FFT
  • Full spectral data capture and graphical display
  • Measurement speeds ranging from 100 µsec to 5 seconds
  • Automatic dark calibration

In addition to our exceptional technical and functional capabilities, Gamma Scientific is ISO/IEC 17025 accredited by NVLAP (NVLAP lab code 200823-0).



CMOS linear image sensor

Wavelength Range

380 to 780 nm

Wavelength Data Increment

1 nm

Acceptance Angle

± 1°

Wavelength Reproducibility

± 1 nm                                    (assumes stable input light source)

Display Range

0.001 to 5000 cd/m2

Luminance (1)


[From 0.05 to 5000 cd/m2]


±  5% from 100 to 5000 cd/m2

±  5% from 0.2 to 100 cd/m2

±  5% from 0.05 to 0.2 cd/m2

 Repeatability (2σ)

±  0.2% from 100 to 5000 cd/m2

±  0.5% from 0.2 to 100 cd/m2

±  0.8% from 0.05 to 0.2 cd/m2

Color (1)


[From 0.05 to 5000 cd/m2]



±  0.002 in CIE 1931 x,y for white from 100 to 5000 cd/m2

±  0.003 in CIE 1931 x,y for white from  0.2 to 100 cd/m2

±  0.005 in CIE 1931 x,y for white from  0.05 to 0.2 cd/m2

 Repeatability (2σ)

±  0.0005 in CIE 1931 x,y for white from 100 to 5000 cd/m2

±  0.001 in CIE 1931 x,y for white from 0.2 to 100 cd/m2

±  0.002 in CIE 1931 x,y for white from 0.05 to 0.2 cd/m2

Stray Light

-25 dB maximum                     (550 ± 40nm monochromatic source)

Polarized Error

< 2%

Integration Time Range

100 µsec to 5 sec                     (fast mode / normal mode)

Digital Resolution

16 bit

Measuring Capabilities

Luminance (cd/m2)                Correlated Color Temp (CCT)                  CIE 1931 Chromaticity Coordinates

Δx, Δy, Δu’, Δv’                      Delta UV (Duv)                                         Dominant Wavelength (ƛd)

Excitation Purity                     CRI and Ra (R1 to R15)                          Spectral Power Distribution (SPD) mW/m2

Peak Wavelength (ƛp)           Peak Wavelength Value (ƛpV)                  Integration Time (I-Time)

                                                                                                                 Scotopic & Photopic Ration (S/P)



Measurement Range

≥ 5 cd/m2

Sampling Rate

100 kHz

Contrast (2)

Accuracy:  ± 1%   (± 2% at 60Hz)                         Reproducibility:  1% (20 to 65 Hz)


Accuracy :  ± 0.5 dB                                                Reproducibility:  0.3 dB

Measuring Capabilities

Min/max, avg, rms & frequency                          JEITA and VESA                                  Flicker Index and % (IES)



Capture Function

One-time or continuous

Operation Mode

RS-232 or USB

Integration Mode

Auto or Manual

Automatic Dark Calibration

Auto mode

Measuring Modes

Basic, Spectrum, CIE 1931 Chromaticity, CIE 1976 Chromaticity, Browser, Flicker, Frequency, Option


System Configuration

External Power

Adapter (included) with USB connector

Data Interface

Mini USB port (USB 2.0)


204 mm (8 in) H x 90 mm (3.6 in) W x 45 mm (1.8 in) D                        620 g (1.4 lbs)

Language Options

English, Traditional Chinese, Simplified Chinese, Japanese

(1)At 23 ± 2° C and relative humidity ≤ 50%                                                                                               Specifications are subject to change without notice.

(2)30 Hz AC/DC 10% sine wave unless otherwise specified