SVANTEK SV 977D Class 1 Sound and Vibration Level Meter

The SV 977D is a Class 1 Sound and Vibration Level Meter designed for advanced acoustic and vibration measurements in building acoustics, occupational noise, and environmental monitoring. It is equipped with a ½” MK 255 microphone, delivering a wide frequency range from 3 Hz up to 20 kHz, and offers excellent long-term sensitivity stability. The meter provides an extended measurement range up to 40 kHz for ultrasound analysis, making it suitable for industrial and medical applications. The SV 977D offers a total dynamic range from 16 dBA RMS to 140 dBA Peak (from the instrument’s noise floor to the maximum measurable level), while the IEC 61672-1 linearity range—measured with a margin above the noise floor—spans from 23 dBA RMS to 140 dBA Peak. This ensures both wide measurement capability and full compliance with the standard.

The meter is fully type approved to IEC 61672-1 Class 1

Highlights

• All-in-one acoustic and vibration measurement: Combines wide-range sound, ultrasound, and vibration monitoring in a single Class 1 instrument.
• Advanced acoustic analysis: Supports A, B, C, Z, LF, U, and AU frequency weightings, Fast/Slow/Impulse time constants, and 1/1- and 1/3-octave filters (IEC 61260-1 compliant).
• Dual-function sound and vibration meter: Operates as a Class 1 vibration meter when connected to a sensor, compliant with ISO 20816-1.
• Wireless control and mobile app support: Equipped with Bluetooth® 5.2 for remote control and data access via apps, including Building Acoustics PRO (supports ISO 16283, RT60, and STIPA workflows).
• High-capacity data storage: Includes a 32 GB MicroSD card for storing time history data, WAV audio recordings, and project files for in-depth post-analysis.
• Rugged and field-ready design: Operates reliably in temperatures from –10 °C to +50 °C and up to 95% relative humidity, with over 16 hours of battery life using standard rechargeable AA batteries.