The PAR200 by UPRtek is a handheld spectrophotometer designed to be lightweight, easy-to-use and portable. Designed for fast and accurate light measurement, the PAR200 makes taking Photosynthetic Photon Flux Density (PPFD) readings easier than ever. With Bluetooth connectivity, and an app for your mobile device to track readings, the PAR200 is perfectly for testing with in controlled environments and in the field.