Professional Sound Level Meter Calibrators UK

UK occupational health and safety guidelines (such as the Control of Noise at Work Regulations 2005) require acoustic measurement tools to be verified before and after each survey session. Field calibration confirms that the microphone transducer and sound level meter electronics have not drifted during transport or due to temperature and humidity fluctuations, ensuring legally admissible audit evidence.

The 94 dB setting corresponds to 1 Pascal of sound pressure and serves as the international standard baseline for noise meter checks. The higher 114 dB setting (10 Pascals) allows technicians to perform calibration checks in high-noise ambient locations without ambient background interference swamping the reference tone.

Yes. The NoiseDecib calibrator features a native 1/2 inch opening matching standard professional measurement microphones and comes with a precision adapter ring to fit standard 1 inch microphone heads.

Yes, the unit is manufactured to comply with IEC 60942 Class 2 standards for sound calibrators, providing an accurate tolerance of ±0.3 dB at 1 kHz for routine field assessments across the UK.

At 1000 Hz (1 kHz), the standard acoustic weighting networks (A, C, and Z weightings) used in sound level meters read identically with zero frequency weighting correction. This allows direct calibration across all meter weighting modes.

Class 1 calibrators offer tighter tolerances (typically ±0.2 dB) across wider environmental ranges for precision laboratory research and environmental boundary enforcement. Class 2 calibrators (±0.3 dB) are standard for general field noise assessments, industrial HSE compliance, and workplace noise audits.