Calibration Makes sure precision by aligning the sound level meter with a identified reference source, with calibration checks verifying precision devoid of adjustments. Periodic testing within an accredited lab is usually recommended. Sound level meters use a list of tolerance specifications within the International Electrotechnical Fee (IEC) for identifying precision https://real-estate-crm-software17261.livebloggs.com/38761574/sound-level-meter-fundamentals-explained