From noisy nightclubs to loud manufacturing facilities, EMI LDA decibel meters are used to test whether a sound level exceeds levels established by municipal or national laws. Occupational safety and health standards for a reliable sound meter (commonly called a dB meter or noise meter) to determine an acceptable noise level with and without hearing protection. For on-the-person occupational sound measurement, EMI LDA noise dosimeter selection offers options for datalogging personal exposure to excessive sound levels.