uSpectrum PAR is a free wireless controller app for Android devices that works with the UPRTek handheld Spectral PAR Meter. This app provides six main features, including Basic, Spectrum, PPFD Spectrum, CIE1931, CIE1976, and CRI. It allows users to remotely analyze light source targets, configure the device's Integration Mode, and save captured data.

The app also shows Spectrum, PPFD Spectrum, CIE1931, CIE1976, and CRI diagrams of the data generated from the UPRTek handheld Spectral PAR Meter. Users can see more information about the light source, such as LUX, CCT, CRI, x, y, λp, and λpV, as well as information about the absorption of the light source, such as PPFD, PFD, PFD-R, PFD-G, and PFD-B. Additionally, users can share the measured data via email.

Overall, uSpectrum PAR is an excellent wireless controller app for UPRTek handheld Spectral PAR Meter users who want to remotely analyze, configure, and save captured data from their device.