Illuminance [lx]*10 - 100 000 lx (for white LED)
Luminance [cd/m2]Available with optional GL OPTI PROBE
Luminous flux [lm]Available with optional GL OPTI SPHERE
Luminous intensity [cd]Calculated in GL SPECTROSOFT
Irradiance [W/m2]0.03 - 600 W/m2 ( for white LED)
Illuminance classClass B - DIN 5032-7
Tolerance - cosine response (f2′)< 3% (1,9%)
Spectral range **340 - 780 nm (UVa-VIS) (GL SPECTIS 1.0 Touch + Flicker UVa - VIS )
TimeSampling period | Upper cut-off frequency | Lower cut-off frequency | FFT frequency resolutions
131 ms8 μs | 12,5 kHZ | 23 Hz | 7,63
262 ms16 μs | 6,25 kHz | 12 Hz | 3,81
524 ms32 μs | 3,125 kHz | 6 Hz | 1,91
1048 ms64 μs | 1,56 kHz | 3 Hz | 0,96
2097 ms128 μs | 781 Hz | 1,5 Hz | 0,48
4194 ms256 μs | 390 Hz | 0,8 Hz | 0,24
8388 ms512 μs | 195 Hz | 0,4 Hz | 0,12
16777 ms1024 μs | 97 Hz | 0,2 Hz | 0,06
33554 ms2048 μs | 48 Hz | 0,1 Hz | 0,03
Frequency range0,01 Hz - 12,5 kHz
Maximum sampling rate125 kHz
Illuminance range0.1 lx - 15.000 lx
FFT plot visualization✓
Time plot visualization✓
Flicker index✓
SVM (Stroboscopic Visibility Measure)✓
Dominant frequency✓
CRI - Color rendering index according to CIERa, R1-R14
TM-30-15Rf, Rg, Colour Vector Graphic
CCT - Correlated color temperature according to CIE✓
Color peak✓
Color dominantoptional with GL SPECTROSOFT
Color position coordinates [x,y] according to CIE 1931✓
Color position coordinates [u’,v’] according to CIE 1976✓
Color position coordinates [u,v] according to CIE 1960✓
PAR / PPFD✓
Color coordinate erroroptional with GL SPECTROSOFT
Metametric indexoptional with GL SPECTROSOFT
Binningoptional with GL SPECTROSOFT
Assessment in accordance with ISO 3664✓
SensorCMOS image sensor
Number of pixels256
Physical resolution / datapoint interval~ 1.7 nm
Wavelength reproducibility0.5 nm
Integration time2,6 ms - 10 s
A/D converter16 bit
Signal-to-noise ratio1000:1
Stray light2*10 E-3
Optical resolution / FWHM10 nm
Uncertainty of spectroradiometric measurement< 3%
Flicker compensation✓
Temperature sensor and dark current compensation✓
Uncertainty of color coordinates***0.0015
Automatic accessory detection✓
Operating systemAndroid
Internal power supplylithium-polymer battery 3500 mAh
Maximum current draw600 mA
External power supplyUSB mini socket: 5 V, 1 A
Automatic shut-off✓
Battery lifeup to 6 h*****
Operating temperature5-35°C
Dimensions [H x W x D]74.5 mm x 145.5 mm x 36.6 mm (with standard diffusor)
Weight349 g
Tripod adapter✓
USBUSB 2.0
TriggerMQ172, 4-pin, programmable
SD Card slotmicro SD 16 GB
Measurement result storageAuto / 16 GB microSD
Data formatXML
Fiber optic connectorOptional SMA905D
Display3,5" color LCD ( 240 x 320 px)
OperationTouch Screen, PC / Notebook
SoftwareOptional GL SPECTROSOFT Basic / Pro / Lab
Case✓
Battery✓
USB cable✓
Power supply✓
Leash✓
Display protection foil✓
4 GB microSD card✓