Illuminance intensity is a decisive factor for productivity, well-being and health, especially in workplaces. Light sources which are too bright are dim and too dark can lead to problems with concentration and headaches. With the Luxmeter testo 545 you can measure the intensity of light from all common sources â quickly, easily and precisely. The measuring device is compatible with almost all commercially available LED and ensures a broad range of applications for you. The Luxmeter automatically calculates the time and point average value, and you can see all the relevant information at a glance. The testo 545 is perfectly complemented by the testo Smart APP. This not only makes it very easy to configure the measuring device, display and save the measured values as well as document storage. The APP also turns your Smartphone into a second display.This text is machine translated.