Use the ELSEC Model 775 Handheld Light Monitor Data Logger to measure the UV and visible light, temperature and thermal radiation that can cause damage to artifacts and documents. This instrument makes it convenient for museum professionals, gallery staff and conservators to regularly monitor and quickly analyze the environment in any display or storage area. The data logger functionality automatically takes as many as 73,000 readings at selectable intervals (every 10 seconds to 1 hour) for uploading to a PC. To transfer saved data to your computer, simply plug the monitor into your PC's USB interface. No special software is required.