Decibel Meter for Accurate Sound Level Measurement

Range: Standard ranges of measurement are in order of increasing lower value; e.g., 30-130 dB, 40-130 dB, 50-120 dB.
Precision: Between ±1.5 dB (highest accuracy) and ±3 dB.
The frequency range is usually 31.5 Hz – 8 kHz, while certain instruments give 20 Hz – 10 kHz for a complete sonic examination.
Power: options are battery, rechargeable battery or adapter.
Display: LCD or LED for digital ones, analogue dial for older ones.
Weighting: Used with all weightings, generally A, C or Z is applied.

Industrial: checks working noise level for safety standards.
Environmental: quantifies noise pollution in both urban and rural environments.
Construction: to keep noise levels within the required limits.
Events: This controls noise levels in concerts and public events.
Home use: Noise testing of appliances or for monitoring indoor environments.

Types of Sound Level Meters

Analogue: Traditional dials, generally for domestic applications.
Digital: Provides a clear and easy-to-read digital display.
Class 2: Very high precision metres used for laboratory and research purposes.
Class 2: general industry and environment monitoring.