This high precision luminance meter for distance measurement with an acceptance angle of 1° is assigned to class B in accordance with DIN 5032-7, appendix B of IEC 13032-1 and CIE 69. It measures the perceived brightness of back-lighted surfaces in candelas per square meter (cd/m²) or foot-lamberts (fL) in consideration of ambient light.

MAVO-SPOT 2 USB Is equipped with an excellent adaptation to the spectral brightness sensitivity of the human eye V(λ) and is highly precise with a minimal deviation of just f1‘ < 3 %, which is significantly better than specified in the standard. By means of the mirror reflex optics, the measuring subject may be targeted precisely in a 15° field of view and a sharply marked 1° measuring circle in the center of the viewfinder. Focus can be set for distances ranging from 1 meter to infinity. Shorter distances as of 34 cm are made possible by means of optional close-up lenses. Alternatively, contact measurement can also be performed with an optional, top quality probe. The velvety coating on the adapter disc prevents scratching of self-luminous and back-lighted surfaces. Measurement functions are selected and measurements are started with convenient on-hand operation.

Examples for using the MAVO-SPOT 2 USB:

Lighting of tunnels

Measuring the reflections at monitors

Lighting of streets