Svantek SV 971 Type 1 Sound Level Meter


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The Svantek SV 971 Sound Meter epitomises everything that Safety and Environmental Health Officers need in a Sound Meter. Capable of taking measurements that meet both the Control of Noise at Work Regulations 2005 and the Environmental Noise Standard BS4142, the SV 971 is one of the best value sound meters on the market.

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Svan 971 Type 1 Sound Level Meter
Svan 971 Type 1 Sound Level Meter Svan 971 Type 1 Sound Level Meter

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Product Specification unless deselected above

Brand Svantek
Application Noise at Work
Noise Features 1/1 Octaves, 1/3 Octaves, Data Logging
Weightings A, C, Z
Measurement Parameters Leq, Ln, Dose
Available Outside the UK? No

Svantek SV 971 Class 1 Sound Meter

The Svan 971 is a small Class 1 sound level meter with options for 1/1 and 1/3 octave analysis. The instrument’s user interface makes both configuration and measurement easier than ever before. It offers extremely simple operational mode with Start/Stop only making it the ideal choice for many applications including industrial hygiene noise, short term environmental noise and general noise measurements performed by acoustic consultants or technical engineers.

Harnessing technology combined with a thoughtful insight into how people use it is the key to product development. The SVAN 971 epitomises these concepts bringing state of the art electronics and a clear user-interface to the world of sound level meters.

The result is a very small instrument (only 56mm wide and 20mm thin), with a full range of measurement capabilities including optional 1/1 and 1/3 octave band analysis for a greater understanding of the frequency content of the noise you are measuring. Not only this, but there is a colour display, micro-SD memory card expansion and up to 24 hours running time. All this comes in a package that only weighs 225g.

SV 971 Applications:

  • Control of Noise at work Regulations 2005
  • Environmental Noise (e.g. BS4142)
  • Complaint Resolution Monitoring
  • Noise for Planning
  • Construction site noise
  • Product Quality Testing
  • Audio Installations 

Another remarkable feature is the built-in self-vibration monitoring which provides information about level of vibration that influences the measurement results.

It also provides broadband results with all required weighting filters plus 1/1 octave and 1/3 octave band filters. They also have time-history logging capability which provides broadband results and spectra with adjustable logging steps. Triggered audio recording is also available whilst logging complete functionality. Data is stored on a microSD card and can be easily downloaded to a PC using the provided SvanPC++ software over either USB or RS 232 interfaces.

The Svan 971 can also be easily calibrated in the field by using an acoustic calibrator. If you insert the microphone into a calibrator it automatically activates the calibration process and the calibration history is automatically logged. The new PC software, the Supervisor, will help owners of the Svan 971 to organise data from a number of measurements and create measurement reports in a quicker and more efficient way than they’ve ever been before.

Features of the Svantek SV 971:

  • Low-cost Class 1 sound level meter meeting IEC 61672:2002
  • Intended for general acoustic measurements, occupational
  • Health and Environmental noise measurements
  • Easy in use predefined setups
  • Extremely simple Start/Stop mode
  • Three parallel independent profiles
  • 1/1 or 1/3 octave real-time analysis
  • Advanced time-history logging
  • MicroSD memory card providing almost unlimited logging capacity
  • Acoustic dose measurements
  • Voice comments recording
  • Audio events recording
  • Self-vibration monitoring
  • Revolutionary pocket size & light weight ca 225 grams
  • OLED color display with super brightness and contrast
  • Very robust casing and IP65 protection level

Please Note - This product is available in the UK only

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Technical Specification

Svantek 971 Sound Level Meter

Standards Class 1 IEC 61672-1:2002
Weighting Filters A,B, C, Z
Time Constants Slow, Fast, Impulse
RMS Detector Digital True RMS detector with Peak detection, resolution 0.1 dB
Microphone ACO 7052E, 35 mV/Pa, prepolarised 1/2” condenser microphone
Calibration Automatic calibration @ 114 dB/1 kHz
Preamplifier Detachable
Linear Operating Range 25 dBA RMS ÷ 140 dBA Peak (in accordance to IEC 61672)
Total Dynamic Measurement Range 15 dBA RMS ÷ 140 dBA Peak (typical from noise floor to the maximum level)
Internal Noise Level less than 15 dBA RMS
Dynamic Range >110 dB
Frequency Range 10 Hz ÷ 20 kHz
Meter Mode Results SPL, Leq, SEL, Lden, Ltm3, Ltm5, LMax, LMin, LPeak plus “running Leq” up to 60 minutes.
Statistics Ln (L1-L99), complete histogram in meter mode
Data Logger Time-history logging of summary results, spectra with adjustable double logging steps down to 100 s
Audio Recording Audio events recording, trigger and continuous mode, 12 kHz sampling rate, wav format (option)
Voice Comments Audio records on demand, created before or after measurement, added to measurement file
Noise Dosemeter Mode Results SPL, Leq, SEL, LPeak, Dose, D-8h, Lav, SEL8, PSEL, E, E-8h, TWA, ’Peak Counter’ and more Exchange Rate 2, 3, 4, 5, 6 (option)
Sound Analyser 1/1 Octave Analysis Real-time analysis meeting Type 1 requirements of IEC 61260, centre frequencies from 31.5 Hz to 16 kHz (option) available simultaneously with three profiles for broadband measurements (SLM), time-history
Sound Analyser 1/3 Octave Analysis Real-time analysis meeting Type 1 requirements of IEC 61260, centre frequencies from 20 Hz to 20 kHz (option) available simultaneously with three profiles for broadband
Ingress Protection Rating IP 65 (excluding microphone)
Input Preamplifier (60 UNS thread)
Memory MicroSD card 4 GB (removable & upgradeable)
Display Colour 96 x 96 pixels OLED type
Keyboard 8 push buttons
Communication Interfaces USB 2.0 client, RS 232 cable (optional)
Power Supply Four AAA alkaline or rechargeable NiMH batteries, operation time 16 h ÷ 24 h (depending on usage), USB interface 100 mA
Environmental Conditions Temperature from -10 oC to 50 oC, Humidity up to 95 % RH, non-condensed
Physical Characteristics Dimensions 232.5mm x 56 x 20mm (including microphone and preamplifier)
Weight Approx. 225 grams with batteries

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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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