Class 1 Sound Level Meter
The new SV971A Sound Level Meter has been designed for both occupational noise and building acoustics measurements. The Class 1 meter has been equipped with a new measuring microphone offering a LAeq linear measurement range from 27 to 137 dB (140 dB Peak) in a single range! The microphone’s improved design ensures even better long-term stability of microphone sensitivity. The SV971A Sound Level Meter uses the new low-power Bluetooth® interface allowing current results to be previewed on a smartphone or tablet as well as controlling measurement Start / Stop. The Assistant application also signals an alarm when set noise limits are exceeded. Along with the new hardware additions, the SV971A Sound Level Meter has been equipped with a new internal program that supports the reverberation time RT 60 measurement and STIPA speech intelligibility measurements, both supported by a mobile application.
SV 971A SLM for Occupational Noise
Large linear measurement range
with a new omnidirectional microphone
Low-power Bluetooth modem
for communication with H&S or BA mobile applications
Building Acoustics and STIPA
supported by a dedicated mobile application
Class 1 accuracy
in accordance with IEC 61672-1
noise measurements in the workplace in accordance with ISO 9612, OSHA, MSHA and ACGIH
sound insulation in accordance with ISO 16283
STIPA in accordance with IEC 60268
Speech transmission index for public address systems
Video: NEW SV 971 Class 1 SLM
Learn more about the SV 971A Sound Level Meter for both occupational noise and building acoustics.
Video: New Features of SV 971A
Discover how the SV 971A can measure from 27 to 137 dB (140 dB Peak) in a single range!
Ask for SV 971A
SV 971A – Class 1 Sound Level Meter
|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, 8 GB microSD card, four AAA batteries, USB cable, and CD with user manual. Each SV 971A has its factory calibration certificate and 36 months warranty card.|
See all accessories
SF 971A_P2 - options package to SV 971A: RT60 and STIPAFirmware options package to SV 971A: RT60 reverberation time and STIPA. Both functions are supported by a mobile application for measurement of sound insulation in accordance with ISO 16283 and STIPA with IEC 60268.
SVANPC++_BA - Building Acoustic Module LicenseThe optional PC software module provides a very powerful extension to the mobile application with the advanced calculations of reverberation time and sound insulation.
SVANPC++EM - Environmental Module LicenseThe 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).
SV 971A – Class 1 Sound Level Meter
|Number of channels||1|
|Communication Interfaces||USB, Bluetooth|
|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|
|Size||232.5 x 56 x 20 mm|
Sound measurements features
|Standards||Class 1: IEC 61672-1:2013, Class 1: IEC 61260-1:2014|
|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||A, B, C, Z, LF|
|Time constants||Slow, Fast, Impulse|
|Exchange rates||2, 3, 4, 5, 6|
|Profiles per channel||3|
|Min logging step||100 ms / 2 ms in RT60|
|Statistics in octaves or third octaves|