The Fluke 945 sound level meter is designed to meet the measurement requirements of safety, health, industrial safety offices and quality control engineers in a wide variety of industrial environments. It offers two types of measurements: The Weighting and C Weighting. Weighting A is for the overall noise level and C-weighting is for measuring the sound level of the acoustic material control in various environments. The Fluke 945 complies with IEC651 Type 2, ANSI S1.4 Type 2, and JISC1502 requirements for sound level meters.