2-axis solar tracker STR-21G

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A single-arm, 2-axis sun tracker with an easy, fully automated setup procedure and low power consumption, the STR-21G is built to deliver unparalleled precision, optimal positioning, and reliability, whatever the weather. All-Weather Tracking with Integrated GPS Receiver&4- Quadrant Sun Sensor Low Power Consumption Quick, Easy. Fully Automated Setup Easy Integration with any DAQ system Harmonic Drive@ mechanical gear system, for maximum positioning accuracy Deployed in Antarctica, proven in extreme climates worldwide With an integrated GPS receiver, 4-quadrant precision sun sensor, and Harmonic Drive® technology, the STR-21G Sun Tracker is built to deliver unparalleled precision, optimal positioning, and reliability, whatever the weather. Easy to set up, the STR-21G automatically adjusts to the sun’s position, even if the tracker is not perfectly oriented or levelled, and can support a range of Global, Diffuse and Direct Radiation measurement sensors for custom configurations. The single configurable arm of the STR-21G can mount the MS-57 Class A Pyrheliometer for DNI readings and the optional MD-81-10 shading disk assembly, shielding any top-mounted pyranometer for diffuse solar radiation measurements. For over 20 years, clients who have deployed STR sun-trackers have enjoyed easy set-up, smooth operation, and reliable tracking.