Class 1 Sound Level Meter
SV 971A
The SV 971A Class 1 sound level meter is designed for occupational noise and building acoustics measurements. The type 1 noise meter uses a microphone offering a linear measurement from 27 to 140 dB in a single range. For ease of use the sound level meter uses dedicated mobile applications, that support sound measurements as well as RT60 and STIPA.
What is a Class 1 Sound Level Meter?
A Class 1 Sound Level Meter is a sound measuring instrument that meets the IEC 61672-1:2013 (or equivalent BS EN 61672-1:2003 or DIN EN 61672-1:2014) standard’s performance criteria such as linear operating range, frequency response, and temperature operating range.
Class 1 SLM
Mobile App
IEC 61672
Sound Level Meter PDF
Catalogues
Sound Level Meter and Analyser
Features
How do I choose a sound level meter?
Know the measurement standard: ISO, OSHA, MSHA, ACGIH
Octave Band Sound Level Meter
Sound frequency analysis in 1/1 and 1/3 octave bands
Sound Level Meter App
Extension to the meter's user interface
How do you measure noise levels?
Follow measurement standards to measure sound pressure level
What is the most accurate sound meter?
The most accurate sound level meter is class 1
Sound Level Meter Software
Firmware, Software for PC, and Mobile App
Sound Level Meter for Classroom
Room Acoustics Parameters Measurements
How do I choose a sound level meter?
Know the measurement standard: ISO, OSHA, MSHA, ACGIH
Read more
Octave Band Sound Level Meter
Sound frequency analysis in 1/1 and 1/3 octave bands
Read more
Sound Level Meter App
Extension to the meter's user interface
Read more
How do you measure noise levels?
Follow measurement standards to measure sound pressure level
Read more
What is the most accurate sound meter?
The most accurate sound level meter is class 1
Read more
Sound Level Meter Software
Firmware, Software for PC, and Mobile App
Read more
Sound Level Meter for Classroom
Room Acoustics Parameters Measurements
Read more
Class 1 Sound Level Meter
Applications
Occupational Noise
ISO, OSHA, MSHA, and ACGIH guidelines
Sound Insulation
Sound insulation measurements following ISO 16283.
STIPA Voice Level Meter
Speech transmission indexes for public address systems.
Best Sound Level Meter
Videos
What is a Class 1 Sound Level Meter?
A Class 1 sound level meter is a sound level meter that meets IEC 61672 standards for accuracy. Take a look at the video and learn about the much more sophisticated instrument features of a professional class 1 sound level meter.
Sound Level Meter Price or Hire
Class 1 Sound Level Meter – SV 971A
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The kit consists of SV 971A Class 1 sound level meter with detachable preamplifier SV 18A and new high quality omni-directional ACO SV 7152 microphone, compliant to IEC61094-4. The list of accessories includes: SA 22 windscreen, 32 GB microSD card, four AAA batteries, USB cable, and USB-DISC with user manual. Each SV 971A has its factory calibration certificate and 36 months warranty card. |
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Open list
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SVANPC++_BA - Building Acoustic Module License The optional PC software module provides a very powerful extension to the mobile application with the advanced calculations of reverberation time and sound insulation.
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SVANPC++EM - Environmental Module License The PC software module is designed for data post-processing from noise and vibration measurements. It provides all necessary functionalities for marking / removing / recalculation of the time-history records and presentation the calculated results in a form of reports (text, table and graphic forms).
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SF 971A_2 - License of 1/3 octave analysis for SV 971A License of 1/3 octave analysis for SV 971A
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SV 971A
Specification
Class 1 Sound Level Meter – SV 971A
Applications
Sound measurements | |
Environmental noise | |
Occupational noise | |
Building acoustics |
Hardware Features
Number of channels | 1 |
Self-vibration detection | |
Auto-calibration | |
Bluetooth | |
Communication Interfaces | USB, Bluetooth |
Display | |
Keyboard | 8 keys |
Memory | uSD card 32 GB |
Battery type | 4 x AAA |
Operating time | 16-24 hours |
Operating temperature range | -10 °C to 50 °C (14 °F to 122 °F) |
Humidity range | up to 95 % RH, non-condensed |
Weight | 225 grams |
Size | 232.5 x 56 x 20 mm |
Sound measurements features
Standards | Class 1: IEC 61672-1:2013, Class 1: IEC 61260-1:2014 |
Type approvals | Pending |
Microphone type | ACO 7152 |
Preamplifier type | SV 18A |
Linear operating range to IEC 61672 | 24 dBA Leq ÷ 140 dBA Peak |
Total measurement range | 17 dBA Leq ÷ 140 dBA Peak |
Internal noise | < 17 dBA Leq |
Frequency range | 5 Hz ÷ 20 kHz |
Weighting filters | Frequency weighting: A, B, C, Z, LF |
Time constants | Time Weighting: Slow, Fast, Impulse |
Exchange rates | 2, 3, 4, 5, 6 |
Criterion levels | adjustable |
Profiles per channel | 3 |
Min logging step | 100 ms / 2 ms in RT60 |
Statistics | Ln (L1-L99) |
Statistics in octaves or third octaves | |
Audio recording | option |
Voice coments | |
1/1 octave | option |
1/3 octave | option |
RT60 | option |
STIPA | option |
Sound Level Meter PDF and Software
Downloads