Autoranging Light Meter Spectral Range:0-20 000 LUX, resolution of 0.1 LUX. This Digital and Auto-ranging Light meter is the most stable, robust and reliable light measuring instrument suitable for indoor light measurement. APPLICATIONS:Occupational health and safety light measurements.Mining vehicle light tests at a distance.Safety in mining.Legal standing in any measurements.Robust instrument for tough physical environments.Measuring light intensities on working surfaces for NDT Tests