







Svantek SV 973A Class 2 Sound Level Meter
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- Number of channels: 1
- Self-vibration detection: Yes
- Auto-calibration: Yes
- Bluetooth: Yes
- Communication Interfaces: USB, Bluetooth
- Display: Yes
- Keyboard: 8 keys
- Memory: internal 8 GB
- Battery type: 4 x AAA
- Operating time: 20-38 hours
- Operating temperature range: -10 °C to 50 °C
- Humidity range: up to 95% RH, non-condensed
- Weight: 225 g
- Size: 229 x 52 x 20 mm
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More information
Description
The SV 973A is a Class 2 Sound Level Meter engineered to IEC 61672-1:2013 standards, ensuring precise, professional noise measurements across diverse workplaces. This advanced instrument features a state-of-the-art MEMS microphone with a lifetime warranty, delivering robust durability and reliable performance. With a frequency range up to 10 kHz and an operating temperature from -10°C to 50°C, the SV 973A exceeds standard requirements for Class 2 precision. Its wide measurement span from 25 dB to 129 dB and Peak up to 141 dB enables accurate assessments of both industrial and environmental noise, including in low background conditions. Optional 1/1 and 1/3 octave band filters enable detailed frequency analysis, while the dual MEMS microphone construction ensures portability and versatility for on-the-go professionals. The SV 973A combines accuracy, durability, and mobility, making it the trusted solution for comprehensive sound level monitoring.
What is a Class 2 Sound Level Meter?
A Class 2 Sound Level Meter is a professional noise measurement instrument built to IEC 61672-1:2013 standards, delivering precision and accuracy in a defined frequency range of 20 Hz to 8 kHz and a temperature range from 0°C to 40°C. While sharing many design elements with Class 1 meters, Class 2 meters differ in acceptance limits and are ideal for general workplace, environmental, and industrial noise monitoring. Each meter integrates a microphone, preamplifier, and signal processor, ensuring consistent, reliable results displayed on an integrated screen for every professional application.
Features
Noise Frequency Analysis
Octave band filters and WAV recording empower advanced noise diagnostics.
The SV 973A offers optional 1/1 and 1/3 octave band analysis, enabling precise identification of noise sources and supporting effective noise reduction strategies. Integrated WAV recording allows users to capture actual sound samples for post-processing and detailed time history analysis, delivering comprehensive data for sound engineering and tailored hearing protection.

Class 2 Sound Level Meter Functionality
Digital conversion and data logging enable detailed noise analysis.
The SV 973A uses an advanced analog-digital converter and time weightings to transform sound measurements into digital decibel readings, instantly displayed on its screen. Noise readings are archived as time histories in 8GB memory, allowing users to download, visualize, and analyze data with included PC software for comprehensive workplace and environmental noise assessments.

Class 2 Sound Level Meter APP
Mobile integration enhances measurement control and data access.
The SV 973A pairs with the Assistant PRO app for iOS and Android, enabling remote measurement control, real-time data viewing, and advanced functions like STIPA and RT60 analysis via low-power Bluetooth®. The app’s intuitive interface offers instant alerts for noise limits and simplifies test management, making environmental and occupational noise monitoring more efficient and accessible.

Class 2 Sound Level Meter Accuracy
Precision and versatility define SV 973A performance.
The SV 973A meets IEC 61672 standards for Class 2 meters, offering linearity deviations within ±1.1 dB across a frequency range of 20 Hz to 10 kHz. Dual measurement ranges for sound level and sound exposure enable reliable assessments in workplace, environmental, and building acoustics applications, making the SV 973A a robust and adaptable tool for precise sound monitoring.

Class 2 vs. Class 1 Sound Meters
Accuracy and frequency range distinguish Class 1 from Class 2 instruments.
Class 1 sound meters maintain ±0.8 dB accuracy across 16 Hz to 16 kHz, while Class 2 sound meters, such as the SV 973A, offer ±1.1 dB accuracy from 20 Hz to 8 kHz, in line with IEC 61672 standards. The SV 973A exceeds Class 2 requirements with a broad operating temperature range from -10°C to 50°C, delivering reliable measurements in diverse conditions.

Class 2 Sound Level Meter Microphone
MEMS technology ensures durability, efficiency, and accuracy.
The SV 973A uses a MEMS microphone that is shock-resistant and energy-efficient, delivering up to 38 hours of battery life and supporting a lifetime warranty. Despite its robust construction, the microphone fully meets Class 2 frequency and accuracy requirements set by IEC 61672, making it a reliable and critical component for professional noise measurement.

Class 2 Sound Level Meter Calibration
Automatic field calibration ensures consistent measurement accuracy.
The SV 973A supports autocalibration at 94 dB and 114 dB, automatically recognizing calibration signals and logging results in memory as soon as the microphone is inserted into the calibrator. A unique drift comparison feature allows users to track calibration data over time, ensuring ongoing accuracy and reliability for every noise measurement session.

Reverberation Time RT60
Class 2 accuracy supports effective classroom acoustic assessments.
The SV 973A measures RT60 reverberation time in line with acoustic standards, helping schools achieve recommended maximum reverberation times of 0.6–0.7 seconds for optimal learning environments. By using sound-absorbing materials and the SV 973A’s precise measurements, schools can significantly improve classroom acoustics and student comfort.

Applications
Occupational Noise Measurements
Compliance with NIOSH SLM, OSHA, MSHA, ACGIH, and ISO standards ensures reliable workplace assessments.
The SV 973A delivers accurate noise exposure measurements up to 141 dB, meeting strict international health and safety guidelines for occupational environments. A robust MEMS microphone and user-friendly software make the SV 973A ideal for professionals, providing durable performance and efficient data management in demanding workplace conditions.

Class 2 Sound Measurements
Accurate measurements up to 10 kHz support diverse monitoring needs.
The SV 973A measures sound pressure levels in full compliance with IEC 61672-1:2013, making it suitable for workplaces, schools, construction sites, and environmental monitoring. Flexible A, C, and Z frequency weightings and time-averaged level analysis ensure precise, reliable results for any professional Class 2 sound measurement application.

STIPA in accordance with IEC 60268
Class 2 accuracy ensures reliable speech transmission measurements in public address systems.
The SV 973A performs STIPA measurements compliant with IEC 60268-16, enabling precise assessment of speech intelligibility in PA and VA systems found in airports, stations, and public venues. The Building Acoustics PRO app streamlines the organization, analysis, and interpretation of STIPA data, ensuring that voice announcements remain clear and effective in complex acoustic environments.

Specifications
Applications
- Sound measurements: Yes
- Occupational noise: Yes
- Building acoustics: Yes
Hardware Features
- Number of channels: 1
- Self-vibration detection: Yes
- Auto-calibration: Yes
- Bluetooth: Yes
- Communication Interfaces: USB, Bluetooth
- Display: Yes
- Keyboard: 8 keys
- Memory: internal 8 GB
- Battery type: 4 x AAA
- Operating time: 20-38 hours
- Operating temperature range: -10 °C to 50 °C
- Humidity range: up to 95% RH, non-condensed
- Weight: 225 g
- Size: 229 x 52 x 20 mm
Sound measurements features
- Standards: Class 2: IEC 61672-1:2013
- Microphone type: MEMS
- Preamplifier type: Integrated
- Linear operating range to IEC 61672: SLM: 30 dBA Leq÷141 dBA Peak
- Total measurement range: 25 dBA Leq÷141 dBA Peak
- Internal noise: < 25 dBA RMS
- Frequency range: 20 Hz ÷ 10 kHz
- Weighting filters: Frequency weighting: A, C, Z
- Time constants: Slow, Fast, Impulse
- Exchange rates: 2, 3, 4, 5, 6
- Criterion levels: adjustable
- Profiles per channel: 3
- Min logging step: 100 ms
- Statistics: Ln (L1-L99)
- Statistics in octaves or third octaves: -
- Audio recording: option
- Voice coments: Yes
- 1/1 octave: option
- 1/3 octave: option
- RT60: option
- STIPA: option
Options
Video
The Best Class 2 Sound Level Meter
See why the SV 973A is the top choice for Class 2 sound measurements.
Watch the video to discover how its MEMS microphone, wide measurement range, and advanced features set a new standard for accuracy and reliability.
Professional Type 2 Noise Meter
Explore the professional features of the SV 973A.
Watch the video to learn about real-time frequency analysis, mobile app integration, and robust design that make the SV 973A ideal for demanding noise monitoring applications.
The SV 973A is a Class 2 Sound Level Meter engineered to IEC 61672-1:2013 standards, ensuring precise, professional noise measurements across diverse workplaces. This advanced instrument features a state-of-the-art MEMS microphone with a lifetime warranty, delivering robust durability and reliable performance. With a frequency range up to 10 kHz and an operating temperature from -10°C to 50°C, the SV 973A exceeds standard requirements for Class 2 precision. Its wide measurement span from 25 dB to 129 dB and Peak up to 141 dB enables accurate assessments of both industrial and environmental noise, including in low background conditions. Optional 1/1 and 1/3 octave band filters enable detailed frequency analysis, while the dual MEMS microphone construction ensures portability and versatility for on-the-go professionals. The SV 973A combines accuracy, durability, and mobility, making it the trusted solution for comprehensive sound level monitoring.
What is a Class 2 Sound Level Meter?
A Class 2 Sound Level Meter is a professional noise measurement instrument built to IEC 61672-1:2013 standards, delivering precision and accuracy in a defined frequency range of 20 Hz to 8 kHz and a temperature range from 0°C to 40°C. While sharing many design elements with Class 1 meters, Class 2 meters differ in acceptance limits and are ideal for general workplace, environmental, and industrial noise monitoring. Each meter integrates a microphone, preamplifier, and signal processor, ensuring consistent, reliable results displayed on an integrated screen for every professional application.
Features
Noise Frequency Analysis
Octave band filters and WAV recording empower advanced noise diagnostics.
The SV 973A offers optional 1/1 and 1/3 octave band analysis, enabling precise identification of noise sources and supporting effective noise reduction strategies. Integrated WAV recording allows users to capture actual sound samples for post-processing and detailed time history analysis, delivering comprehensive data for sound engineering and tailored hearing protection.

Class 2 Sound Level Meter Functionality
Digital conversion and data logging enable detailed noise analysis.
The SV 973A uses an advanced analog-digital converter and time weightings to transform sound measurements into digital decibel readings, instantly displayed on its screen. Noise readings are archived as time histories in 8GB memory, allowing users to download, visualize, and analyze data with included PC software for comprehensive workplace and environmental noise assessments.

Class 2 Sound Level Meter APP
Mobile integration enhances measurement control and data access.
The SV 973A pairs with the Assistant PRO app for iOS and Android, enabling remote measurement control, real-time data viewing, and advanced functions like STIPA and RT60 analysis via low-power Bluetooth®. The app’s intuitive interface offers instant alerts for noise limits and simplifies test management, making environmental and occupational noise monitoring more efficient and accessible.

Class 2 Sound Level Meter Accuracy
Precision and versatility define SV 973A performance.
The SV 973A meets IEC 61672 standards for Class 2 meters, offering linearity deviations within ±1.1 dB across a frequency range of 20 Hz to 10 kHz. Dual measurement ranges for sound level and sound exposure enable reliable assessments in workplace, environmental, and building acoustics applications, making the SV 973A a robust and adaptable tool for precise sound monitoring.

Class 2 vs. Class 1 Sound Meters
Accuracy and frequency range distinguish Class 1 from Class 2 instruments.
Class 1 sound meters maintain ±0.8 dB accuracy across 16 Hz to 16 kHz, while Class 2 sound meters, such as the SV 973A, offer ±1.1 dB accuracy from 20 Hz to 8 kHz, in line with IEC 61672 standards. The SV 973A exceeds Class 2 requirements with a broad operating temperature range from -10°C to 50°C, delivering reliable measurements in diverse conditions.

Class 2 Sound Level Meter Microphone
MEMS technology ensures durability, efficiency, and accuracy.
The SV 973A uses a MEMS microphone that is shock-resistant and energy-efficient, delivering up to 38 hours of battery life and supporting a lifetime warranty. Despite its robust construction, the microphone fully meets Class 2 frequency and accuracy requirements set by IEC 61672, making it a reliable and critical component for professional noise measurement.

Class 2 Sound Level Meter Calibration
Automatic field calibration ensures consistent measurement accuracy.
The SV 973A supports autocalibration at 94 dB and 114 dB, automatically recognizing calibration signals and logging results in memory as soon as the microphone is inserted into the calibrator. A unique drift comparison feature allows users to track calibration data over time, ensuring ongoing accuracy and reliability for every noise measurement session.

Reverberation Time RT60
Class 2 accuracy supports effective classroom acoustic assessments.
The SV 973A measures RT60 reverberation time in line with acoustic standards, helping schools achieve recommended maximum reverberation times of 0.6–0.7 seconds for optimal learning environments. By using sound-absorbing materials and the SV 973A’s precise measurements, schools can significantly improve classroom acoustics and student comfort.

Applications
Occupational Noise Measurements
Compliance with NIOSH SLM, OSHA, MSHA, ACGIH, and ISO standards ensures reliable workplace assessments.
The SV 973A delivers accurate noise exposure measurements up to 141 dB, meeting strict international health and safety guidelines for occupational environments. A robust MEMS microphone and user-friendly software make the SV 973A ideal for professionals, providing durable performance and efficient data management in demanding workplace conditions.

Class 2 Sound Measurements
Accurate measurements up to 10 kHz support diverse monitoring needs.
The SV 973A measures sound pressure levels in full compliance with IEC 61672-1:2013, making it suitable for workplaces, schools, construction sites, and environmental monitoring. Flexible A, C, and Z frequency weightings and time-averaged level analysis ensure precise, reliable results for any professional Class 2 sound measurement application.

STIPA in accordance with IEC 60268
Class 2 accuracy ensures reliable speech transmission measurements in public address systems.
The SV 973A performs STIPA measurements compliant with IEC 60268-16, enabling precise assessment of speech intelligibility in PA and VA systems found in airports, stations, and public venues. The Building Acoustics PRO app streamlines the organization, analysis, and interpretation of STIPA data, ensuring that voice announcements remain clear and effective in complex acoustic environments.

Applications
- Sound measurements: Yes
- Occupational noise: Yes
- Building acoustics: Yes
Hardware Features
- Number of channels: 1
- Self-vibration detection: Yes
- Auto-calibration: Yes
- Bluetooth: Yes
- Communication Interfaces: USB, Bluetooth
- Display: Yes
- Keyboard: 8 keys
- Memory: internal 8 GB
- Battery type: 4 x AAA
- Operating time: 20-38 hours
- Operating temperature range: -10 °C to 50 °C
- Humidity range: up to 95% RH, non-condensed
- Weight: 225 g
- Size: 229 x 52 x 20 mm
Sound measurements features
- Standards: Class 2: IEC 61672-1:2013
- Microphone type: MEMS
- Preamplifier type: Integrated
- Linear operating range to IEC 61672: SLM: 30 dBA Leq÷141 dBA Peak
- Total measurement range: 25 dBA Leq÷141 dBA Peak
- Internal noise: < 25 dBA RMS
- Frequency range: 20 Hz ÷ 10 kHz
- Weighting filters: Frequency weighting: A, C, Z
- Time constants: Slow, Fast, Impulse
- Exchange rates: 2, 3, 4, 5, 6
- Criterion levels: adjustable
- Profiles per channel: 3
- Min logging step: 100 ms
- Statistics: Ln (L1-L99)
- Statistics in octaves or third octaves: -
- Audio recording: option
- Voice coments: Yes
- 1/1 octave: option
- 1/3 octave: option
- RT60: option
- STIPA: option
The Best Class 2 Sound Level Meter
See why the SV 973A is the top choice for Class 2 sound measurements.
Watch the video to discover how its MEMS microphone, wide measurement range, and advanced features set a new standard for accuracy and reliability.
Professional Type 2 Noise Meter
Explore the professional features of the SV 973A.
Watch the video to learn about real-time frequency analysis, mobile app integration, and robust design that make the SV 973A ideal for demanding noise monitoring applications.






































































































































