Portable multi-angle spectrophotometer with 6 angles and double-path system

  • Portable Multi-Angel Spectrophotometer with vertical alignment
  • Wavelength range 400-700 nm
  • 45° illumination: -15° / 15° / 25° / 45° / 75° / 110° aspecular viewing angles with double-path technology
  • Double-path technology
  • Measurement area Average 6mm for small + curved parts

The CM-M6 is a portable multi-angle spectrophotometer especially designed for colour measurement of metallic and effect paints and plastics. It uses a new, patented double-path illumination system with directed 45° illumination and 6-angle observation (-15°/15°/25°/45°/75°/110° aspecular viewing angles with double-path technology) from two sides to accurately measure painted parts at the automotive production floor.

This new, patented optical measurement system is optimized to give accurate and stable results even on curved surfaces. Therefore, samples such as front and rear bumpers, vehicle mirror bodies or door handles can be measured fast, accurately and repeatedly.


  • Updated UI: a simple and modern user interface ensures that the operator can easily and repeatably operate the device with minimal training. 
  • Built-in display: instrument configuration, control and measurement results are displayed both numerical and graphical form to minimise the risk of operator errors. The display is backlit and easy to use even in dark conditions. 
  • Multi angle optics: patented optical system designed to give the best performance on the surfaces that would have been considered the most difficult.
  • Rechargeable battery: removable lithium-ion battery is charged over USB bus power and can be supplemented by additional  batteries and an external charger.
  • Mount screw: tripod mount screw on the top of the device enables fixing the instrument to a boom arm or harness to minimise the load on the operator.
  • Optional Bluetooth module: the device can be connected to colour data software via Bluetooth to integrate and expedite measurement processes on the production line.

Specifications & Downloads

Specifications & Downloads
Model CM-M6

Illumination/viewing system

45° illumination: -15° / 15° / 25° / 45° / 75° / 110° aspecular viewing angles with double-path technology

Detector Dual 40-element silicon photodiode arrays
Spectral separation device Linear variable filter

Wavelength range

400 to 700 nm

Wavelength pitch

10 nm

Photometric range

0 to 600 %; Output/display resolution: 0.01%

Light source

High-CRI white LED

Measurement time

Approx. 4.5 s; Minimum measurement interval: Approx. 5 s

Battery performance

Approx. 1500 measurement at 10-sec. intervals from fully charged battery

Measurement/illumination area

Ø 6 mm / Ø 12 mm


Colorimetric value: Standard deviation within ΔE*ab 0.05

(when a white calibration plate is measured 30 times at 10-second intervals after white calibration)

Inter-Instrument Agreement

Within ΔE*ab 0.2

(Averaged for 12 BCRA Series II tiles compared to values measured with a master body at 23℃)


USB2.0; Bluetooth®: optional


3.5-inch TFT Color LCD

Display data

Colorimetric data: L*a*b*, L*C*h
Color difference data: Δ(L*a*b*), Δ(L*C*H*), ΔE*ab, CMC(l:c), ΔE94 (CIE1994), ΔE00(CIE DE2000), DIN6175-2
Other data display: MI, FF value, line graph, pass/fail judgement

Observer condition

2° and 10° colorimetric standard observer

Illuminant condition

A, C, D50, D65, F2, F6, F7, F8, F10, F11, F12

(simultaneous evaluation with two light sources possible)

Display languages

English, German, French, Italian, Spanish, Portuguese, Russian, Turkish, Polish, Chinese (simplified), Japanese

Operating temperature/humidity range

0 - 40°C; relative humidity 85% or less (at 35°C) with no condensation

Storage temperature/humidity range

-20 - 45°C; relative humidity 85% or less (at 35°C) with no condensation


Removable Lithium-ion rechargeable battery or AC Adapter

Dimensions (W × H × D)

Approx. 152 × 239 × 81 mm


Approx. 1.1 kg (including battery)

Standard accessories

White calibration plate, USB cable, AC adapter, Lithium-Ion battery pack, Zero Calibration Box

Optional Accessories

Charging stand for spare batteries; spare battery packs, Bluetooth® module

SpectraMagic™DX (software)

Specifications are subject to change without prior notice.

CM-M6 Catalogue

Portable multi-angle spectrophotometer with 6 angles and double-path system




Optional accessories for CM-M6



Hard Case CM-A221

For storing and carrying the instrument and its accessories.

Item Order Code: A9DT-601


Battery Charger CM-A227

For external charging of spare battery packs.

Item Order Code: A9DT-706


Lithium-ion Battery CM-A223

To enable power backup for standalone usage.

Item Order Code: A9DT-701


Bluetooth® module set

External module to enable Bluetooth® communication

Item Order Code: A9DT-714


SpectraMagic™ DX software

Data eXchange Software to easily visualize and manage digital data

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