Sound Level Meter


Noise Exposure Meter

 "Hearing Damage"Alert
Noise Exposure Meter

Custom Calibration
of Sound Level Meter

Hearing Protection &
Hearing Loss Prevention

Multi-Function Meter for Sound Level & Noise Exposure Measurement, Hearing Protection, Hearing Loss Prevention, and Workplace/Appliance/Toy/Kitchen Noise Safety.

SoundMeter+ offers a very accurate sound level meter, noise exposure meter, spectrum analyzer, and a professional grade hearing-safety monitor on iPhone/iPod touch/iPad.



› Precise Sound Pressure Level monitoring.

› Real-time frequency spectrum.

› Visible alert when environment is hearing-damaging.

› Exposure-time alert in noisy environment according to OSHA (Occupational Safety and Health Administration) guideline.

› Environment-aware Hearing Protection messages.

› Safety screening of sound-emitting toys for kids.

› Safety screening of noise hazard from appliances, power & hand tools, and kitchen tools.

› Safety screening of noise hazard anywhere: home, disco, party, concert, restaurant, etc.

› Noise Exposure Level for workplace safety.

› Hands-on guides of Hearing Protection, Hearing Loss and Tinnitus Prevention.

› Self-evaluation of hearing loss.

› Evaluate hearing protection devices before buying.

› Calibrate home theaters and speakers.

› Easily support external microphone by custom calibration mode.

› Take a snapshot of current screen and send it out via email (by pressing a "camera" icon on bottom bar).


Technical Specifications

› Sound Level Meter : IEC 61672 Compliant

  » A/B/C/D/No Weighting.

  » Fast/Slow Mode.

  » Max/Min Hold & Duration.

  » 30-130dB Dynamic Range in 0.1dB Resolution.

  » Low/Auto/High Range with Accuracy +/-1.2dB.

  » Factory Calibration for Apple Built-in Internal microphone.

  » Support Customer's External Microphone with Easy Calibration Method.

  » Calibrate Speakers by Spectrum Analyzer and No Weighting.


› Personal Sound Exposure Meter (Noise Dosimeter) : OSHA Compliant

  » Dose, TWA, Projected Dose, Projected TWA, Elapsed Time.

  » Exchange Rate: 5 dB.

  » Criterion Level: 90 dB.


› Impulsive Noise Meter : IEC 61672 Compliant

  » Level Resolution: 0.1dB.

  » Time Resolution: ms.


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