Sound Level Meters
Sound level meters and noise dosimeters are used in many kinds of sound and noise analysis including industrial safety, traffic and transportation noise quantification, and scientific noise measurement. They are frequently hand-held and battery-powered. Sound level meters measure real-time sound and can have functions such as signal analysis, noise dose measurement, and different time and frequency weighting. Sound level meters and noise dosimeters are used for measuring Sound Pressure Level (SPL) and different weightings such as A-weighted SPL, C-weighted SPL, Sound Exposure Level, etc. Noise dosimeters are used for specific measurement capability for defined industrial safety criteria. A typical measure is a sound exposure for an 8-hour period. These instruments can be found either individually or as one unit that covers the capabilities of both products.
Two critical specifications for sound level meters and noise dosimeters are frequency range and sound level range. Frequency Range is the range of frequencies for which the meter maintains a constant sensitivity within defined boundaries. Functionally, this is the operational range of the meter. The sound level range is limited on the low end by the inherent noise of the acoustic system and on the high end by the maximum sound pressure level. Many sound level measurement modes are available for these devices. Flat or unweighted SPL measures the straight physical quantity with no weighting. A-weighting is a frequency domain weighting based on human hearing response. This filters out low-frequency sound to approximate the response of the human ear. C-weighting filters less low-frequency sound than A-weighting, providing a closer representation of acoustic energy across all frequencies. A-weighted sound exposure level measurement is used for short or one-time sounds as the equivalent 1-second level. Equivalent continuous SPL is the noise level of a continuous steady sound whose time-averaged power equals that of the fluctuating noise under measurement. Percentile SPL measures the percentage of time during a given measurement period that the instantaneous measurement exceeds a given value.
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Extech 407760: USB Sound Level Datalogger
Price : 981.00 AED407760 Sound Level Datalogger can record up to 129,920 records and uses a USB interface for easy setup and data download. The datalogger meets ANSI...
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Extech 407750: Sound Level Meter with PC Interface
Price : 1,235.00 AEDThe 407750 Sound Level Meter with PC Interface has a large backlit display, PC Interface and background sound absorber for noise measurements with ...
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Extech 407744: 94dB Sound Calibrator
Price : 1,493.00 AEDThis 1kHz, 94dB professional sound calibrator for 0.5" or 1.0" microphones calibrates and verifies sound level meter operation. Battery test positi...
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Extech 407732-KIT Low/High Range Sound Level Meter Kit
Price : 1,955.00 AEDThis Type 2 Sound Level Meter Kit meets ANSI and IEC 651 Type 2 standards. Ideal for noise surveys in the workplace, installing fire alarms and spe...
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Extech 407732: Low/High Range Sound Level Meter
Price : 873.00 AEDThis type 2 sound level meter meets ANSI and IEC 651 Type 2 standards. Ideal for noise surveys in the workplace, installing fire alarms and speaker...
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Extech 407730: Digital Sound Level Meter
Price : 413.00 AEDThe 407730 sound level meter measures from 40 to 130dB with an accuracy of 2dB. The digital display offers a 0.1dB resolution and features a fast r...
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Extech 407355: Noise Dosimeter/Datalogger with PC Interface
Price : 2,715.00 AED407355 is a Personal Noise Dosimeter Datalogger which performs OSHA and IEC Noise accumulation surveys to measure total sound exposure over an 8-ho...
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Besantek BST-SL2 Digital Sound Level Meter
Price : 910.00 AEDThe Besantek BST-SL2 Sound Level Meters is designed to cover a wide range of applications and performance criteria including noise pollution studie...
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