The photometer 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 photometer can be positioned appropriately for every measuring task. - Measuring range: 1000 … 400,000 lux - Resolution: 0.1 lux - Lux and footcandle units - Micro-USB interface - Incl. software - Rechargeable battery - Data memory: 32,000 sets of readings