SV 102A+ Class 1 Dual Channel Dosimeter

The SV 102A+ Class 1 Dual Channel Dosimeter is presenting a new approach to occupational health and safety acoustic monitoring tasks. This dosimeter can be also used as a dual-channel Class 1 sound level meter and real-time 1/1 octave & 1/3 octave analyser.



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The SV102A+ is a dual-channel noise dosimeter designed for the accurate measurement of noise exposure to ISO 9612, OSHA and NIOSH standards. The two channel technology allows for noise exposure levels to be assessed simultaneously on both sides of the head.

The meter meets class 1 requirements of IEC 61672 and it can be used when measuring at very low temperatures (from -10 C) or when noise is dominated by high frequencies as it is recommended by ISO 9612.

The colour digital display is an OLED screen with a high contrast visibility even in full daylight or in low ambient light
areas. It displays information in both text and graphical form.

The auto-calibration facility makes the SV102A+ very easy to use. Once the instrument detects the calibration
signal it starts the calibration process automatically, saving the calibration data together with the measurement file, both before and after measurement.

The time history logging of results such as Leq, Max, Min and Peak with two simultaneous logging steps is saved in 8 GB memory. All dosimetry results such as DOSE, TWA, LAV are also included.

The small and compact SV 15 preamplifier together with special mounting clip and dedicated headband enables an easy attachment of the microphone in extremely short distance to human ears. Calibration by measurement can be easily performed by direct usage of common acoustic calibrators.

SV 102A+ is also able to perform the measurement inside human ear – with the usage of SV 25S – smart microphone with an automatic calibration function (TEDS). The SV 102A+ together with SV 25S are designed for individual real-world test of the earmuffs noise reduction ratio by means of MIRE technique (Microphone-In-Real-Ear)-measurements under headphones or earmuffs. With a special adaptor, SV 25S can be also calibrated with available acoustic calibrators.


  • Class 1
  • Dual channel input
  • Auto calibration
  • Unique opportunity to assess the exposure on both sides of the head simultaneously

Additional information


Standard, Advanced

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