Medium class sound meters - Models 91 - 92

Models 91 - 92

 Simple to use meters for a wide range of applications

  • Ideal for Industrial and Environmental Noise measurements

  • Simply switch the instrument on, calibrate and begin measurement

  • Easy to navigate keypad

  • Broadband measurements with Time History

  • Data record of the measurements

  • Data-logging with outstanding Analyser software package provided as standard

  • Option to print data directly from the instrument

  • Automatic Backlight

  • Memory: 16 Mbit memory allowing up to 1300 broadband measurements

  • Batteries: 2 x AA (LR6) up to 24 hours at constant usage

  • Operating temperature: from -10°C to +50°C

  • Dimensions: 340 mm x 75 mm x 25 mm

  • Weight: 450 g


The Model 91 (Class 1) and Model 92 (Class 2) are the ideal choice for noise measurements in the Environment and in the Industrial area in accordance with the Noise at Work Regulations. The instruments have been designed to be easy to use whilst providing the user with the fundamental parameters required to comply with current legislation, such as Leq, LEP,d (LEX,8h) and LCPeak.

The main difference between the models is that the one is from Class 1 and the other from Class 2.

The class of the sound meter defines his accuracy and it is also defined by the international standards: Class 1 is more accurate from Class 2.