SV104BIS Compact Personal Noise Dosimeter Intrinsically Safe

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The SV 104BIS is an intrinsically safe version of the personal noise dosimeter, the SV 104. Both instruments provide a new approach to occupational health and safety noise monitoring with options such as 1/1 octave band real-time analysis and audio events recording functions which high quality in an instrument of this size.

All results are clearly displayed on the clear OLED screen which offers excellent visibility in full daylight or darkness.

Docking Station required to charge the unit(s) (see options)

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Product Specification unless deselected above

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Measurement Parameters Dose, Lepd, Leq
Weightings A, C, Z
Application Noise at Work
Brand Svantek
Available Outside the UK? No

SV 104BIS Compact Personal Noise Dosimeter Intrinsically Safe

This personal dosimeter has a strong 1/2" MEMS microphone enabling easy calibration using most commonly available acoustic calibrators. The new microphone has a large dynamic range of the 90 dB which allows to measure noise from 60 dBA to 140 dBA. The long list of microphone advantages includes also the autocalibration feature and TEDS memory that stores the calibration info in the microphone itself. The auto-calibration means performing the acoustic calibration automatically once the microphone is inserted into the calibrator. The SV 104IS is a cable-free dosimeter and is typically attached to the user’s shoulder, close to the ear using the mounting clips supplied. The instrument works with Svantek’s health and safety software package, “Supervisor”, that provides various tools for data analysis and reporting. The docking station supports data transfer to the PC through the infrared interface as well as handles the battery charging. Rechargeable batteries of SV 104IS are able to power the instrument for 50 hours.


  • Intrinsic safety in accordance to ATEX and IECEx
  • Personal Noise Dosimeter conforming to IEC 61252 and ANSI S1.25
  • Class 2 in accordance to IEC 61672
  • Measurement range 60 dBA RMS ÷ 140 dBA Peak
  • L(C-A) calculation
  • Automatic calibration start (auto-calibration)
  • Shock resistant MEMS microphone
  • Built-in tri-axial accelerometer for vibration shock (knocking) detection
  • High contrast color OLED display
  • Single measurement range
  • Option for octave real-time analysis
  • Option for audio events recording
  • Voice tagging
  • Three virtual measurement profiles
  • Operational time > 50 hours
  • Rechargeable battery
  • Extremely compact, light weight and robust case

SV 104BIS Dosimeter

Standards IEC 61252 ed1.1 (2002); ANSI S1.25-1991 (R2007);Class 2 IEC 61672-1 ed2.0 (2013) ATEX: EN 50303, EN 60079-0, EN 60079-11, EN 60079-26, certificate number: FTZU 14 ATEX 0055X IECEx: IEC 60079-0, IEC 60079-11, IEC 60079-26, certificate number IECEx FTZU 15.0001X
Weighting filters A, C and Z
Time constants Slow, Fast, Impulse
Exchange rates 2, 3, 4, 5, 6
Measurement results SEL8, E, E_8h, LEPd, PSEL, Ltm3, Ltm5, Ln statistics, Peak Threshold Counter (PTC), PTP, Upper Limit Time (ULT), TWA, Projected TWA (PrTWA), Lc-a, OVL
Measurement profiles 3
Microphone Class 2 microphone, 1/2" housing
Measurement range 60 dBA RMS ÷ 140.1 dBA Peak
Frequency range 20 Hz ÷ 10 kHz
Dynamic range 90 dB
Data logging Summary results for the measurement time Time-history logging of Leq/Max/Min/Peak with 1s logger step
Voice comments Audio records on demand, created before or after measurement, added to measurement file
Audio recording Audio events recording, trigger and continuous mode, 12 kHz sampling rate, wav format (option)
1/1 octave Real-time analysis in octave band filters 9 filters with centre frequencies from 31.5 Hz to 8 kHz (option)
Display OLED 128 x 64 pixels
Memory 64MB
Interfaces USB 2.0 client
Keyboard 3 push buttons
Power Supply Rechargeable cell; operation time > 50 hours1
USB Interface 500mA HUB
Environmental Conditions Temperature: from -10 oC to 50 oC Humidity: up to 90 % RH, non-condensed
Dimensions 88 x 49.5 x 19.2 mm
Weight 117g with batteries

What's in the Box

  • SV104BIS Personal Noise Dosimeter Instrinsically Safe, includes:
    • SV27IS Microphone
    • SA 122IS Windscreen
    • Built In Rechargeable Batteries (docking station not included)
    • CD with Instruction
    • Transport Box

Downloads and Datasheets


About SvanPC++

This piece of advanced software supports Svantek measuring instruments. Each Svantek device is is easy to use and a complete measuring systems because of the functionalities and extended capabilities in this advanced application. The software has been divided for several specialised modules by distinguishing application fields in order to give users the perfectly customised, powerful and sophisticated tool. The functions provided by the main module include measurement data downloading from instruments to PC, measurement setups creating, basic Leq/RMS recalculation, measurement results in text, tabular and graphical format, export data to spread sheets or text editor applications.

Features include:

  • Being able to easily download data of measurements to a PC
  • Total Leq/ RMS recalculation
  • Quick reporting tool
  • A variety of presentation results including text, table and graphical format 
  • Advanced customisation of each view
  • Creation of measurement setups  
  • Merging of measurement files.
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