Intrinsically safe noise dosimeter SV 104BIS

SV 104 BIS is a Class 2 personal noise dosimeter certified for use in explosive atmospheres. It combines a robust MEMS microphone with intrinsic safety in accordance with ATEX and IECEx, making it ideal for monitoring worker noise exposure in hazardous industrial environments. The dosimeter measures noise levels from 53 dBA Leq to 143 dBA Peak, logs data with high resolution, and records 1/1 or 1/3 octave bands and audio events for detailed post-analysis.

Bluetooth® connectivity enables real-time data preview on mobile devices using the Assistant app, while the built-in triaxial vibration sensor ensures traceable and accurate results, even during movement or misuse. With a life-time warranty on the microphone and up to 45 hours of operation on a single charge, the SV 104 BIS offers long-term reliability and performance for noise exposure assessments aligned with ISO 9612, OSHA, MSHA, and ACGIH standards.

SV104IS Svantek
ATEX, IECEx

new model
Svantek patented
patented

Highlights

  • Certified for explosive environments, compliant with ATEX and IECEx for use in hazardous zones.
  • Patented MEMS microphone with life-time warranty and integrated auto-calibration (TEDS).
  • Real-time Bluetooth® preview, allowing remote data access and alarms via smartphone app.
  • Simultaneous octave and audio recording (options), enabling noise source identification and hearing protector selection.
  • Built-in vibration sensor, detecting misuse and ensuring result integrity.
  • 45-hour runtime, supported by fast USB charging and docking station options.

Practical Features in Use

Intrinsic Safety for Hazardous Environments

Certified noise monitoring designed for explosive atmospheres

SV 104BIS is an intrinsically safe personal noise dosimeter, designed for use in explosive-risk environments such as mines, refineries, and chemical plants. Certified under ATEX and IECEx, the device meets international standards for intrinsic safety by limiting electrical and thermal energy to prevent ignition.
intrinsically safe dosimeter

MEMS microphone with lifetime warranty

Rugged design for reliable, long-term performance

SV 104BIS uses a patented MEMS microphone designed for tough industrial environments. Its solid-state build ensures shock resistance, low power use, and stable sensitivity. Backed by a lifetime warranty, it delivers accurate, maintenance-free noise measurements for years.
intrinsically safe dosimeter

Noise source recognition

Real-time analysis and audio logging for better insight

The SV 104BIS offers optional 1/1 or 1/3 octave band analysis and simultaneous audio recording, enabling detailed identification of noise sources. This dual approach supports accurate selection of hearing protectors and provides context for critical noise events during post-analysis.
intrinsically safe dosimeter

Mobile app support

Remote access, live preview, and limit alerts via Bluetooth®

The SV 104BIS connects via Bluetooth® to the Assistant mobile app, allowing users to preview real-time noise levels, control measurement sessions, and receive alerts when noise limits are exceeded—all without interrupting the worker.
dosimeter

Standards compliance and accuracy

Full alignment with Class 2 and occupational noise standards

The SV 104BIS meets ANSI S1.25, IEC 61252, and IEC 61672 Class 2 requirements, ensuring high accuracy in industrial noise measurements. It supports ISO 9612, OSHA, MSHA, and ACGIH methodologies, recording Leq, Max, Min, Peak values alongside DOSE, TWA, and Lav with dual time-history logging for detailed exposure analysis.

Auto-calibration feature

Accurate, user-independent setup with built-in calibration memory

The SV 104BIS features an auto-calibration system enabled by a TEDS-equipped MEMS microphone, which stores calibration data directly in the microphone. This eliminates manual setup errors, ensures traceable accuracy, and streamlines field use by automatically recognizing calibration parameters during setup.

Catalogue

Intrinsically Safe Noise Dosimeter

The SV 104BIS is the latest intrinsically safe noise dosimeter from Svantek, featuring a rugged MEMS microphone with lifetime warranty, Bluetooth® interface for real-time preview, and 8 GB memory for long-term measurements. A new docking station ensures fast and reliable data transfer, streamlining workflow in hazardous environments.

intrinsically safe dosimeter

Applications

Occupational Noise

Compliant measurements across all workplace standards

The SV 104BIS supports noise exposure monitoring in accordance with ISO 9612, OSHA, MSHA, ACGIH, and the EU Noise Directive. Its wide 100 dB dynamic range (from 53 dBA Leq to 143 dB Peak) ensures accurate assessment in diverse industrial environments, from low-level exposure to extreme noise events.

Read more
SV104BIS-intrinsically-safe-noise-dosimeter

Videos

New generation of noise dosimeters

Audio recording, measurement in octaves and MEMS microphones changed the noise dosimetry measurements

Application of the dosimeter in practice

An example of the use of a noise dosimeter during a sports event with high noise levels

Noise dosimeter configuration

A quick way to configure measurement parameters for noise measurement at workplaces

Check Availability & Price













    Products in the enquiry (1)

    I hereby consent to the processing of my personal data, i.e. my full name and e-mail address, by SVANTEK SP. Z O.O. with its registered office in Warsaw at ul. Strzygłowska 81 for the purpose of receiving marketing information on the products and services offered by SVANTEK SP. Z O.O. via electronic means of communication, in particular via e-mail, in accordance with the provisions of Article 10 sec. 1 and 2 of the Act on providing services by electronic means.

    I hereby consent to the processing of my personal data, i.e. my full name and phone number, by SVANTEK SP. Z O.O. with its registered office in Warsaw at ul. Strzygłowska 81 for the purpose of marketing activities with the use of telecommunications terminal equipment and automatic calling machines within the meaning of the Telecommunications Act.

    I hereby consent to receiving from SVANTEK SP. Z O.O. with its registered office in Warsaw at ul. Strzygłowska 81, via electronic means to the e-mail address I have provided, the newsletter and marketing information on the products and services offered by SVANTEK SP. Z O.O., within the meaning of the Act on providing services by electronic means.


    I declare that I have been informed that my data may be transferred to entities that process personal data on behalf of the Administrator, in particular to distributors - such entities process data on the basis of an agreement with the Administrator and exclusively in accordance with its instructions. In such cases, the Administrator requires third parties to maintain the confidentiality and security of information and verifies that they provide appropriate measures to protect personal data.

    Some of the entities processing personal data on behalf of the Administrator are established outside the EEA. In connection with the transfer of your data outside the EEA, the Administrator verifies that these entities provide guarantees of a high level of personal data protection. These guarantees stem in particular from the obligation to apply the standard contractual clauses adopted by the Commission (EU). You have the right to request a copy of the standard contractual clauses by sending a request to the Controller.

    I declare that I have been informed on my right to withdraw my consent to the processing of my personal data at any time, to access the provided personal data, to rectify, erase, restrict processing and object to the processing of my data, as well as the right to lodge a complaint with the President of the of the Personal Data Protection Office in the event of an infringement of the provisions of GDPR.

    Specifications

    SV 104BIS – Intrinsically safe noise dosimeter

    Applications

    Sound measurements
    Occupational noise

    Hardware Features

    Number of channels
    1
    Intrisic safety
    Self-vibration detection
    Auto-calibration
    Remote system check
    Keyboard lock
    Remote communication
    Bluetooth
    Communication Interfaces
    Bluetooth, Electrical contacts (docking station required)
    LED indicator
    Display
    Keyboard
    3 push buttons
    Memory
    8 GB
    Battery type
    Li-Ion rechargeable cell
    Operating time
    45 hours
    Operating temperature range
    -10 °C ÷ +50 °C
    Humidity range
    up to 90 % RH
    Weight
    117 g
    Size
    88 x 49.5 x 19.2 mm
    IP rate
    IP 65
    Docking station required

    Sound measurements features

    Standards
    IEC 61252 Ed 1.2 (R2017); ANSI S1.25-1991 (R2020); Class 2 IEC 61672-1 Ed 2.0 (R2013)
    Type approvals
    Yes
    Microphone type
    ST 104B MEMS
    Preamplifier type
    Integrated
    Linear operating range to IEC 61672
    53 dBA RMS ÷ 143 dBA Peak
    Total measurement range
    46 dBA RMS ÷ 143 dBA Peak
    Frequency range
    20 Hz ÷ 10 kHz
    Weighting filters
    A, C and Z
    Time constants
    Slow, Fast, Impulse
    Exchange rates
    2, 3, 4, 5, 6
    Criterion levels
    selectable
    Profiles per channel
    4 with independent settings of filters (x) and time constants (y)
    Min logging step
    1s
    Statistics in octaves or third octaves
    Audio recording
    option
    Voice coments
    1/1 octave
    option
    1/3 octave
    option

    Downloads