The OL 731 USB Smart Detector is a low-cost, flexible, programmable, compact radiometer-photometer that can easily be set up for specialized needs. A range of sensors and filters are available to tailor the spectral response to the application – specific requirements. A command set is provided to enable the creation of acquisition programs. As delivered, the OL 731 Series detectors can be operated by any computer with a USB connection.
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Reviewed in the United States on February 4, 2026
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So glad I bought this! I need to move almost all of my reptiles lights to the inside of their cages for them to be in the correct zones, I had no idea they were not getting enough uvb before.
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