SVAN-977 Class 1 Sound level meter

Overview

The SV 977D is a Class 1 Sound and Vibration Level Meter built for demanding field measurements across building acoustics, occupational noise, and environmental monitoring. It features a ½" Microtech Gefell MK 255 microphone, real-time 1/1 and 1/3-octave frequency analysis, and supports WAV audio recording for post-processing. The meter integrates Bluetooth 5.2 for wireless control via mobile apps and includes the Building Acoustics PRO app for RT60 and STIPA workflows compliant with ISO 16283. With a 32 GB MicroSD card, USB-C connectivity, and a 12–16 hour battery life, the SV 977D is engineered for extended on-site measurement campaigns.

Key Specifications

• Class 1
• 3 Hz–20 kHz (40 kHz ultrasound)
• 16–140 dBA dynamic range
• A/B/C/Z/LF/U/AU weighting
• 1/1 and 1/3-octave filters
• Bluetooth 5.2
• USB-C
• 32 GB MicroSD
• WAV recording
• 600 g

Applications

• Building acoustics
• Occupational noise
• Environmental noise monitoring
• Machine vibration analysis

Standards & Certifications

IEC 61672-1:2013 Class 1, IEC 61260-1:2014, ISO 20816-1, ISO 16283