MAIN MENU
knowledge, resource center, case studies, inta

4231

Sound Calibrator Class 1 and LS, 94 and

B&K Class 1 Sound Level Calibrator is designed for accurate in-field acoustic calibration of sound level meters, microphones and other sound measurement equipment.

  • Standards : IEC/EN 60942 (2017) Class 1
  • Calibration pressure : 94 and 114 dB
  • Calibration frequencies : 1000 Hz
  • Calibration accuracy : ±0.2 dB
  • Transducer : 1-inch, 1/2-inch and 1/4-inch
img

Sound Calibrator Class 1 and LS, 94 and

expand_more
chevron_left
chevron_right

Type 4231 is a a handy, portable sound source for acoustic calibration of sound level meters and other sound measurement equipment. The sound calibrator is very stable and conforms to IEC/EN 60942 (2017) Class 1, and ANSI S1.40–2006.

Twin sound pressure levels guarantee definitive checks even in noisy environments and ensure linearity in your microphones. For maximum confidence in your measurement results,you can quickly compensate for local measurement conditions by calibrating before every measurement.

  • Robust, pocket-sized design with highly stable level and frequency
  • Calibration accuracy ±0.2 dB
  • 94 dB SPL or 114 dB SPL for calibration in noisy environments
  • Extremely small influence of static pressure and temperature
  • Sound pressure independent of microphone equivalent volume
  • 1 kHz calibration frequency for correct calibration level independent of weighting network
  • Fits HBK 1″ microphones (1/2″, 1/4″ and 1/8″ microphones with a microphone adaptor)
  • Switches off automatically when removed from the microphone
Language keyboard_arrow_down

Modern Slavery Statement     Imprint    Cookie Policy    Privacy Policy    Sitemap    Company Profile 

 

© 2026 Hottinger Brüel & Kjær

 

 

close
image
Graphics Brand

We haved moved ${referer} to www.hbkworld.com

 

This will bring together HBM, Brüel & Kjær, nCode, ReliaSoft, and Discom brands, helping you innovate faster for a cleaner, healthier, and more productive world.

close
image
Graphics Brand

We haved moved ${referer} to www.hbkworld.com

 

This will bring together HBM, Brüel & Kjær, nCode, ReliaSoft, and Discom brands, helping you innovate faster for a cleaner, healthier, and more productive world.

close
image
Graphics Brand

We haved moved ${referer} to www.hbkworld.com

 

This will bring together HBM, Brüel & Kjær, nCode, ReliaSoft, and Discom brands, helping you innovate faster for a cleaner, healthier, and more productive world.