Lutron LX1010B digital light level meter has large LCD display, silicon photodiode sensor, filter data hold function, 18mm digit height, 1 – 50000 lux measurement range, 1 lux resolution, +/- 4% + 10 digit / +/-5% + 10 digit accuracy, 2 test/s sampling rate. This lux meter comes with a separate light sensor which provides the user to take measurements at an optimum position.