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Extech 407766-NIST 94/114 dB Sound Calibrator, Analog, Aluminum, 9V battery NIST Certified Sound level calibrators at 94 dB or combination 94 dB/114 dB, 1 kHz professional calibrator for 0.5 In. or 1.0 In. microphones. Housed in a durable die-cast aluminum. Complete with:<ul style="margin-top:0px;padding-top: 5px; padding-bottom: 5px;"><li>Two 9v batteries</li><li>Carrying case</li><li>Screwdriver</li><li>NIST Certificate</li></ul>

Extech 407766-NIST 94/114 dB Sound Calibrator, Analog, Aluminum, 9V battery NIST Certified

407766nist-94114-db-sound-calibrator-analog-aluminum-9v-battery-nist-certified

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