The illuminometer has a large measuring range of 0 … 400 lux. The illuminance is measured using an external silicon photodiode with a spectral filter. This means that the illuminometer can be positioned appropriately for every measuring task.Measuring range: 0,0 … 400,000 LuxResolution: 0.1 luxLux and footcandle unitsMicro-USB interfaceIncl. softwareRechargeable batteryData memory: 32,000 sets of readings