GL Spectis 5.0 Touch

The world’s most accurate self-contained optical spectrometer

Spectis 5 Touch Optical Spectrometer

Lab Grade Accuracy, Portable Design

With the Spectis 5.0 Touch optical spectrometer, the accuracy and configurability of portable light measurement devices has been taken to a new level. Until now, photometric and radiometric accuracy this high was only available in high end lab systems. Using this state-of-the-art spectral light measurement instrument, you can get lab grade data anywhere you go. Our light spectrometers are individually calibrated to deliver precise results quickly, with options to include our industry leading Spectrosoft Analysis suite for advanced analysis and reporting.

This truly unique LED spectrometer can be configured to cover an extended spectral range from UV to NIR using a single sensor, calibrated for absolute measurements from 200nm to 1050 nm. The practical design of this instrument allows for various types of measurements for a range of different applications. From UV measurements in Photobiological Safety tests through lab accuracy VIS range LED lamps evaluation to IR range tests of LEDs in medical application. The Spectis 5.0 optical spectrometer has you covered.

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Global Standard Accuracy

The Spectis 5.0 touch optical light meter features a large laboratory grade back thinned CCD sensor from Hamamatsu delivering extraordinary stability over longer exposure times. The device is calibrated with the use of reference standards which are traceable to National laboratories and confirmed by the globally recognized factory calibration. Electronic dark current levels are monitored automatically with intelligent compensation for any drift due to temperature fluctuations.

Advanced technology

The Spectis 5.0 portable spectroradiometer uses the latest photonics technology to provide an easy-to-use, precise and practical tool for lighting professionals. When you have a demanding measurement applications outside laboratory, or you need immediate dependable results, this fully self-contained optical spectrometer is the ideal solution. Connect to a PC for use in the lab, production or other industrial location where light or any other optical radiation must be measured.

Industry leading flexibility

With the universal concept and design of the Spectis 5.0 Touch, you can easily expand your measurement system by adding any one of our integrating spheres or additional accessories. Measure irradiance with standard diffusor or fiber optic probes. Connect to spheres for flux measurement or combine this instrument with luminance / radiance telescope for specialized evaluation of hazards and quality.

Laboratory Grade Optical Spectrometer Anywhere You Need it!

Accessories for a range of applications

Illumination and Irradiance

Horticulture and Photobiological Safety

Extended range calibration and high resolution allows for advanced measurement tasks like blue light safety exposure testing and lab level spectral analysis of any type of optical radiation between 300 and 1050nm. Optimize crops by ensuring the light levels across the spectra are sufficient.

Luminous Flux of Single LEDs

Eye Safety Evaluation

Dedicated radiance measurement telescope is available as accessory for our Spectis 5.0 optical spectrometer the evaluation of risk groups according to IEC Photobiology Safety Standard. This set includes factory calibration traceable to National Standards.

Luminance and Radiance

Museum Lighting Control

Our handheld spectroradiometers are used by world’s most famous galleries to control and verify the spectral power distribution of their lighting to protect the artifacts from the damaging effects of optical radiation. Read more here.

Luminance and Radiance Measurement

Medical and Scientific Light

Medical device manufacturers, pharmaceutical and other biotech companies are using the Spectis 5.0T optical spectrometer for the verification of product quality or spectral properties of optical radiation which may have negative effect on Biological Substance or Active Pharmaceutical Ingredients.

Spectis 5.0 Touch Usage

Spectis 5.0 Touch Usage

The idea to create an extended spectral range, high performance in a portable spectroradiometer was raised many times during contact with customers using our other handheld spectrometers for LED testing. Many users of our laboratory instrumentation where also asking if it would be possible to have the same accuracy in a smaller device so that you don’t have to carry bulky laboratory devices into the field. This was the origin of the Spectis 5.0 Touch light spectrometer which was designed by merging the practical self-contained features of our SPECTIS 1.0 series with the top end accuracy optical system coming from a typical laboratory instrument. The result is one of the premier solutions in the market for advanced LED and optical radiation measurements for general lighting, medical, electronic and scientific applications.

Unmatched Optical Performance

The Spectis 5.0 optical spectrometer has been tested and evaluated by many laboratories around the world and has consistently delivered the same accuracy as many a lot more expensive and complicated metrological instruments. For extended range configurations, our spectroradiometers are individually calibrated with certified reference standards that cover the entire spectrum from 200nm to 1050nm. The factory calibration and uncertainty values verify performance that up until now were only possible with scanning spectroradiometers or monochromators.

Professional LED characterization

The Spectis 5.0 Touch portable spectrometer can be used with any of our integrating spheres and goniometer systems for advance measurements in accordance with CIE 127:2007 and CIE 025/E:2015. The high accuracy and resolution make it ideal instrument for measurements confirming to (IES) LM-79-08 and other international standards.

Spectis 5.0 Touch Features

Extended Spectral Range

With a wide wavelength range from 200 to 1050nm, the Spectis 5.0 Touch spectroradiometer allows for measurements in accordance with a number of standards, including Photobiological Safety (EN 62471) or measurement of SSL products (IESNA LM-79-08).

Touch Screen Display

The instrument does not require a computer to take measurements. Navigation is very simple and key data can be immediately displayed using the device’s color touch screen:

  • full spectral profile i.e. spectral power distribution
  • chromaticity charts according to CIE standards
  • color coordinates
  • all lighting parameters like CCT, CRI and the individual R1 – R 15 indices
  • color peak values

Photometric and radiometric calibration

An absolute spectral calibration is integrated into each spectrometer before delivery thereby enabling the accurate measurement of different absolute values such as lux, candela or lumen together with radiometric values depending on the measurement accessory installed.

Dark Current Compensation

Despite the fact that it is not a cooled detector instrument, GL SPECTIS 5.0 touch light spectrometer is ready to provide very accurate measurements in different conditions. A temperature sensor installed on the electronic board monitors changes in temperature and automatically compensates for any change in dark current level providing excellent measurement stability.

Micro SD

Thousands of light measurements are automatically saved on the 4GB micro SD card included. The system creates a library of folders containing measurement data stored in separate files. The naming system can easily be changed to help the user gain easy access to the saved measurements. Moreover, the data can be transferred directly to a computer from the micro SD card.

Variety of integrating spheres and probes available

With the universal concept and design of the Spectis 5.0 Touch, you can easily expand your measurement system by adding any one of our integrating spheres or additional accessories.

Automatic accessory detection

The Spectis 5.0 Touch optical spectrometer possesses a unique mechanism to detect which optical probe has been attached and automatically uses the correct calibration file for that accessory. This enables the user to confidently avoid measuring errors when changing accessory interfaces. The calibration meets the requirements of leading standards institutes and is confirmed with a manufacturer’s certification.

Spectis 5.0 Touch Metrics

Our preconfigured, individually calibrated spectral light meters deliver fast and precise results for nearly any practical light measurement application. Measure in seconds and review the results directly on the handheld display or dig deeper with the included software. Using the Spectis Touch, you can measure any or all of the following optical quantities:

  • Lux – irradiance
  • Lumen – luminous flux
  • CRI – color rendering index according to the CIE
  • CCT – the color temperature according to standard CIE
  • Color – the chromatic coordinates of the CIE 1931 and CIE 1964
  • Fidelity and Gamut – method for evaluating light source color rendition according to TM-30 IES standard
  • PAR/PPFD – photosynthetic active radiation measurements for horticulture
  • EML – biological effects of light on humans in equivalent melanopic lux
  • mWatt – radiation energy
  • + many more!

Whatever your application, our precise SPECTIS 5.0 Touch spectrometer is ideal.

Spectis Touch Specifications


Spectral range 340-850nm / 200-800nm / 380-1050nm / 200-1050nm
Sensor Back-thinned type CCD image sensor
Numer of pixels 2048
Physical resolution ~ 0.5nm
Optical FWHM 2.5nm – 3.5nm
Measurement range 1 – 50.000lx [Illuminant A]
Wavelength reproducibility 0.5nm
Integration time 10ms to 60s
A/D conversion 16 bits
Signal to noise ratio 1000:1
Stray light 2*10E-4
Spectroradiometric accuracy* 4%
Measurement uncertainty of color coordinates (x.y) 0.0015
Illuminance** 0.1 lx to 200.000 lx
Irradiance 0.02 to 600 w/m2
Luminous Flux (w/ Opti Sphere 48mm) 0.005 to 150 lm
Luminance (w/ Opti Probe 1.0.10) 5 to 150,000 cd/m2
Physical Specifications
PC interface USB 2.0 standard
Full color display 240x320px
Micro SD card 4GB
Power lithium-ion battery 4000mAh
Power consumption ~ 700mA
Power supply Input: AC 100-240V 50/60Hz 0.15A
Output: 5V-1A
Ambient temperature 5-35°C
Dimensions 111mm x 210mm x 58mm
Weight 1500g

*Absolute measurement uncertainty after calibration. The expected uncertainty corresponds to a coverage probability of 95% and the coverage factor k=2

**Measurement below 1 lx may require customization to obtain noted specification. Please discuss with technical sales.

Note: Instrument, firmware and software specification are subject to change without prior notice. All information included in GL OPTIC datasheets and product information available in any form are carefully prepared and included information believed to be true. Please note that discrepancies may occur due to text and/or other errors or changes in the available technology. We advise to contact GL Optic before the use of the product to obtain the latest product specification.


Spectis 5.0 360 degree view