// Noise Dosimeters

SV104IS + 104BIS

The SV 104IS is an intrinsically safe noise dosimeter with a robust 1/2” MEMS microphone enabling easy calibration using most commonly available acoustic calibrators. A new microphone has a large dynamic range of the 90 dB which allows to measure noise from 60 dBA Leq to 140 dB Peak. The long list of microphone advantages includes also the auto-calibration feature and TEDS memory that stores the calibration info in the microphone itself. The auto calibration means performing acoustic calibration automatically once the microphone is inserted into the calibrator.


Great news! The SV 104IS now comes with the option of Bluetooth(r)! That’s right, the SV104BIS provides all the same features and benefits of the traditional intrinsically safe device, but now with optional Bluetooth capabilities enabling current results to be previewed on a smartphone or tablet using the Assistant application. The smartphone application also signals an alarm when the set noise limits are exceeded.


  • Shock resistant MEMS microphone with a life-time warranty
  • Intrinsic safety in accordance to ATEX and IECEx
  • Personal Noise Dosimeter conforming to IEC 61252 and ANSI S1.25
  • Type Approval in accordance to Class 2 IEC 61672
  • Single measurement range 60 dBA RMS ÷ 140 dBA Peak
  • L(C-A) calculation
  • Automatic calibration start (auto-calibration)
  • Built-in tri-axial accelerometer for vibration shock (knocking) detection
  • High contrast color OLED display
  • Option for octave real-time analysis
  • Option for audio events recording (wave format)
  • Voice tagging
  • Three virtual measurement profiles
  • Measurement of Laeq and Lcpeak in one profile
  • Operational time > 50 hours
  • Rechargeable battery
  • Extremely compact, lightweight and robust case