Split design: The measuring part and the reading part are separated by a telescopic spring to avoid the influence of strong light on the naked eye. Wide measurement range: 0-200000 lux and 0Fc ~ 20000Fc, switchable unit Lux / Fc and / temperature unit. The large illuminated probe effectively increases the measurement area for better processing efficiency in taller or narrower measurement environments. 2 recording modes: automatic storage of lighting data (up to 2000 groups) and manual storage (up to 60 groups). BT APP is easy to connect: You can get the light meter status and test data through the mobile APP, which is more convenient and smarter. It is easier to store test data via the phone. Widely used for light intensity monitoring in homes, laboratories, offices, schools, indoor breeding and other places.