The SV 104 is a compact personal noise dosimeter designed for accurate and reliable occupational noise exposure monitoring in everyday workplace environments. Built for ease of use and consistency, it combines automated calibration, self-vibration detection, and stable MEMS microphone technology to ensure dependable measurements throughout a work shift.
Designed to support compliance with international noise standards, the SV 104 simplifies noise dosimetry through intelligent data logging, long operating time, and a lightweight, wearable form factor. Its robust design and automated functions make it an ideal solution for routine occupational noise assessments where accuracy, repeatability, and efficiency are critical.
| Sound measurements features | |
|---|---|
| Sound measurements | ✔️ |
| Occupational noise | ✔️ |
| Number of channels | 1 |
| Intrinsic safety | - |
| Self-vibration detection | ✔️ |
| Auto-calibration | ✔️ |
| Keyboard lock | ✔️ |
| Remote communication | - |
| Bluetooth | - |
| Communication interfaces | USB, infrared |
| LED indicator | ✔️ |
| Display | ✔️ |
| Keyboard | 3 push buttons |
| Memory | 8 GB |
| Battery type | Ni-MH rechargeable cells |
| Operating time | 40 hours |
| Operating temperature range | -10 °C ÷ +50 °C |
| Humidity range | up to 95 % RH |
| Weight | 121 g |
| Size | 88 × 49.5 × 19.2 mm |
| Docking station required | - |
| Standards | IEC 61252 Ed.1.2 (R2017); ANSI S1.25-1991 (R2020) |
| Microphone type | ST 104C MEMS microphone |
| Linear operating range to IEC 61672 | 55 dBA RMS ÷ 140.1 dBA Peak |
| Total measurement range | 50 dBA RMS ÷ 140.1 dBA Peak |
| Frequency range | 20 Hz ÷ 10 kHz |
| Weighting filters | A, C and Z |
| Time constants | Slow, Fast, Impulse |
| Exchange rates | 2, 3, 4, 5, 6 |
| Criterion levels | Selectable |
| Profiles per channel | 3 with independent filters (x) and time constants (y) |
| Min logging step | 1 s logger step |
| Statistics in octaves or third octaves | ✔️ |
| Audio recording | Option |
| Voice comments | ✔️ |
| 1/1 octave | Option |