The Klein K10-A has long been regarded as the industry standard in LCD calibration. It's enhanced optics give it a 3X advantage in sensitivity over the original K-10 SF. Known for it's superior speed, the K10-A can stream intensity data in 3.2 milliseconds and can provide color data in 125 milliseconds. The Klein K10-A is also extremely sensitive and color accurate. Large photo-diodes give the probe superior performance even in extremely low light (down to 0.00006 cd/m^2). Klein diodes are very large (5mm x 5mm each), thermally stable, and linear to report the highest degree of accuracy. The unparalleled speed and iconic design of this colorimeter have made it the most widely known Klein product.