AZ INSTRUMENT 8921 Professional Sound Level Meter User Guide
The AZ INSTRUMENT 8921 and 8922 Professional Sound Level Meters meet IEC60651 standards and feature auto/manual ranging, max hold, and Fast/Slow response modes. The sound calibrator (Vz8930BAZ) is optional. Order the Vz8921AZ or Vz8922AZ, and consider the VZUSBAZM software kit for your calibration needs.