The Svantek SV 971A is a class 1 sound level meter, designed for professional noise measurements in accordance with IEC 61672-1:2013. This compact and lightweight device offers a wide measuring range of 27 to 137 dB LAeq (peak up to 140 dB) in a single range, ideal for accurate measurements in a wide variety of environments. With features such as real-time 1/1 and 1/3 octave band analysis, RT60 reverberation time measurements, STIPA speech intelligibility measurements and audio recording, the SV 971A is suitable for occupational noise measurements, building acoustics and environmental noise.
The SV 971A is fitted with a new microphone with a dynamic range of 120 dB and improved long-term stability. Thanks to low-power Bluetooth connectivity, the device can be paired with mobile apps such as the Building Acoustics Assistant, for real-time data management and analysis. The auto-calibration function and compatibility with the SvanPC++ and Supervisor software make it a user-friendly solution for safety and acoustics professionals.
Technical specifications
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Class: Class 1, in accordance with IEC 61672-1:2013, BS EN 61672-1:2003, ANSI S1.4.
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Measuring range: 27 to 137 dB LAeq, peak up to 140 dB, dynamic range 120 dB.
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Frequency range: 20 Hz – 20 kHz, sampling rate 48 kHz.
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Frequency analysis: Real-time 1/1 and 1/3 octave band analysis (optional).
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Weighting filters: A, C, Z for various measurement parameters.
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Memory: MicroSD card for data logging and audio recordings.
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Audio recording: WAV files for sound source analysis (optional).
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Connectivity: Low-power Bluetooth, USB, RS-232 for data transfer.
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Display: Full-colour OLED, readable in daylight.
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Battery: Up to 24 hours of use, rechargeable.
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Weight: 225 g, IP65 housing for ruggedness.
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Calibration: Automatic with acoustic calibrator, TEDS support.
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Standards: ISO 9612, ISO 16283, IEC 60268, OSHA, MSHA, ACGIH.
Functional features
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Real-time analysis: 1/1 and 1/3 octave band analysis for detailed frequency data.
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Mobile integration: Bluetooth connectivity with apps for RT60 and STIPA measurements.
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User-friendly: Auto-calibration and an intuitive interface with Start/Stop mode.
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Data logging: Time-history logging with adjustable steps for long-term monitoring.
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Versatility: Suitable for occupational, environmental and building acoustics measurements.
Areas of application
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Occupational noise measurement: Assessment of noise exposure in the workplace in accordance with ISO 9612.
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Building acoustics: Measurement of sound insulation and reverberation time (RT60) in accordance with ISO 16283.
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Environmental noise: Monitoring of traffic, construction and community noise.
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Speech intelligibility: STIPA measurements for public address systems (IEC 60268).
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Classrooms: Analysis of acoustic parameters such as RT60 and STIPA for optimal learning environments.
When should you choose the Svantek SV 971A?
The Svantek SV 971A is a class 1 sound level meter that stands out for its compact size, high precision and advanced functionality, tailored specifically to professional acoustic measurements. With a measuring range of 27 to 137 dB LAeq (peak up to 140 dB) in a single range and a dynamic range of 120 dB, the SV 971A offers unrivalled accuracy for a wide range of applications, from workplace safety to building acoustics. The new microphone with improved long-term stability guarantees reliable measurements, even during prolonged use in demanding environments.
The dual functionality for real-time 1/1 and 1/3 octave band analysis makes the SV 971A ideal for detailed frequency analysis, useful for selecting hearing protection (ISO 4869-2) and assessing sound insulation (ISO 16283). The optional audio recording enables users to distinguish sound sources from background noise such as traffic noise or machinery. This is valuable in environmental noise studies and industrial settings where sound sources vary.
A unique feature is the integration of RT60 reverberation time and STIPA speech intelligibility measurements, supported by a dedicated mobile app. In classrooms, for example, the SV 971A measures the acoustic quality in order to guarantee an optimal learning environment, while in public spaces STIPA measurements assess the effectiveness of announcement systems.
For professionals looking for precision, versatility and ease of use in noise measurement, the SV 971A is an excellent choice. Request a quote without obligation at the touch of a button, or feel free to contact us by telephone or e-mail for a demonstration of the Svantek SV 971A.
