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Class 1 Sound and Vibration Level Meter SV 977D

A professional-grade sound meter for building acoustics, occupational noise, and environmental monitoring. The SV 977D combines the functions of a Class 1 sound level meter, vibration meter, and ultrasound analyser in one versatile device. Fully compliant with IEC, ISO, and British Standards (including BS 7385 and BS EN 61672), and STIPA approved for building acoustics, it’s the ideal solution for acoustic consultants, safety engineers, and environmental professionals across the UK.

Preferred by Acoustic and Safety Professionals

From onsite sound insulation tests to workplace vibration assessments, the SV 977D is the go-to sound level meter for professionals who demand accuracy, flexibility, and compliance. Widely adopted across the UK and Europe, it supports daily use in acoustic consulting, occupational hygiene, and environmental monitoring.

Features

Standards Compliance

Class 1 accuracy in accordance with BS EN 61672-1:2013

The SV 977D meets international Class 1 sound level meter standards, including BS EN 61672-1 and ANSI S1.4. With an optional microphone, it also supports ultrasound measurements up to 40 kHz in 1/3 octave bands.

sv 977-sound-meter-and-analyser-octave-band

Precision Microphone

Reliable Class 1 measurements in sound, noise, and acoustics

The SV 977D features a detachable preamplifier and high-quality omnidirectional microphone for consistent, accurate results. Ideal for H&S, building acoustics, and environmental noise monitoring across professional applications.

SITMA-Approved App Integration

Building Acoustics control via Bluetooth and smartphone

The SV 977D connects wirelessly to the Building Acoustics App for guided insulation testing in line with ISO 16283. The app is officially approved by SITMA, ensuring trusted workflows for airborne, impact, and façade sound insulation measurements.

Real-Time Acoustic Analysis

Octave band and WAV recording for sound source identification

The SV 977D performs real-time 1/1 and 1/3 octave analysis to identify frequency components of noise and vibration. It also supports time-domain WAV recording, enabling post-analysis and source tracking in complex acoustic environments.

Standards Compliance

Class 1 accuracy in accordance with BS EN 61672-1:2013

Precision Microphone

Reliable Class 1 measurements in sound, noise, and acoustics

SITMA-Approved App Integration

Building Acoustics control via Bluetooth and smartphone

Real-Time Acoustic Analysis

Octave band and WAV recording for sound source identification

Applications

Building Acoustics

RT60 and insulation testing compliant with BS EN ISO 16283

The SV 977D supports reverberation time (RT60) and sound insulation measurements with guided workflows via the Assistant app. Users can easily manage projects, capture source and receiver room data, and generate compliant reports directly from the meter.

building-acoustics-insulation-omni-source-sv-977

Occupational Noise

Reliable measurements for workplace noise exposure

The SV 977D supports HSE-compliant noise assessments across industrial, medical, and service environments. With ultrasound capability up to 40 kHz and ready-made report templates in Supervisor software, it helps H&S professionals save time while meeting regulatory standards.

Building Acoustics

RT60 and insulation testing compliant with BS EN ISO 16283

Occupational Noise

Reliable measurements for workplace noise exposure

Class 1 Sound Level Meter

The SV 977D is a Class 1 Sound and Vibration meter designed for building acoustics, occupational noise and environmental noise measurements.

Building Acoustics PRO

Reverberation time measurement (RT60) using the Building Acoustics PRO mobile application.

Check Availability & Price

Class 1 Sound and Vibration Level Meter SV 977D

The SV 977D kit includes a Class 1 sound and vibration level meter with 1/1 and 1/3 octave analysis pre-installed • detachable SV 12L preamplifier • MK 255 high-quality 1/2" condenser microphone • microSD memory card • carrying case • windscreen • USB cable • AA batteries. Each unit is supplied with a factory calibration certificate and a 36-month warranty card upon product registration.

SC 158 - USB-C to USB-A communication cable

USB-C to USB-A communication cable

SA 22 - Windscreen for 1/2"" microphone (70 mm)

Windscreen for 1/2" microphone (70 mm)

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...

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Specifications

Class 1 Sound and Vibration Level Meter SV 977D

Applications

Sound measurements

Occupational noise

Building acoustics

Machine vibration

Hardware Features

Number of channels

Auto-calibration

Remote communication

Bluetooth

GPS module

Communication Interfaces

USB-C, I/O, RS232, Bluetooth 5.2

Display

Keyboard

9 keys

Memory

uSD 32 GB

Battery type

Operating time

12-16 hours

Operating temperature range

-10 °C to 50 °C

Humidity range

up to 90 % RH, non-condensed

Weight

600 grams

Size

343 x 79 x 39 mm

Sound measurements features

Standards

Class 1: IEC 61672-1:2013, Class 1: IEC 61260-1:2014

Type approvals

approved according to WELMEC requirements

Microphone type

Microtech Gefell MK 255

Preamplifier type

SV 12L

Linear operating range to IEC 61672

23 dBA Leq÷140 dBA Peak

Total measurement range

16 dBA Leq÷140 dBA Peak

Internal noise

<16 dB LAeq

Frequency range

3 Hz ÷ 20 kHz

Weighting filters

A, B, C, Z, LF, U, AU

Time constants

Slow, Fast, Impulse

Profiles per channel

Min logging step

2 ms

Statistics

Ln (L1-L99)

Statistics in octaves or third octaves

Audio recording

option

1/1 octave

1/3 octave

FFT

option

RT60

option

STIPA

option

RPM

option

Class 1 Sound and Vibration Level Meter SV 977D

Preferred by Acoustic and Safety Professionals

Features

Standards Compliance

Precision Microphone

SITMA-Approved App Integration

Real-Time Acoustic Analysis

Applications

Building Acoustics

Occupational Noise

Sound Meter

Class 1 Sound Level Meter

Building Acoustics PRO

Check Availability & Price

Specifications

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