This is a photometric detector with a sleek and elegant look. It is well engineered to work with high stability and reliability. This photometric detector offers an extra-long service life.

• Photometry is the science of the measuring visible light, in terms of its perceived brightness to the human eye.
• The photometric detectors are built by using selected, stability tested Si-photovoltaic cells with advanced color filters.
• They are designed to simulate the response of the human visual system and match to the spectrum of CIE V(λ) function.
• The error function f1’ is an index that indicates the degree of spectral mismatch.
• We provide different products in three error classes, such as class A, class B and class C.
• Every type detector is individually calibrated and measured f1’ to conform to the CIE specifications.
• They are available to be used to measure illuminance (lx) and luminous flux (lm).
• Class A with f1′ < 1.5%.
• Class B with f1' < 3%.
• Class C with f1' ≤ 3.75%.