![Extech 407750 [407750-NIST] Sound Level Meter with PC Interface and NIST Calibration](image/cache/wp/gj/Products/Extech_407750-800x800.webp "Extech 407750 [407750-NIST] Sound Level Meter with PC Interface and NIST Calibration")
Extech 407750 [407750-NIST] Sound Level Meter with PC Interface and NIST Calibration
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![Extech 407750 [407750] Sound Level Meter with PC Interface](image/cache/wp/gj/Products/Extech_407750-200x200.webp "Extech 407750 [407750] Sound Level Meter with PC Interface")
