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Hemisphere Kits
The GRAS hemispheres are compliant with the ISO 3744, 3745 and 3746 (ANSI S12.54, S12.55, S12.56) standards and accommodate for 4, 10 and 20 positions. Two hemisphere structures are available; a 1 m measurement radius and a 2 m measurement radius. Each structure is available in CCP, LEMO and LEMO low noise variants.
Link to GRAS Website: