The SVAN 958 is all digital, four-channel 20-kHz-band signal analyser including Type 1 sound level meter (meeting IEC 61672) and vibration meter (meeting ISO 8041). It is an ideal choice for Human Vibration (according to the ISO 2631- 1,2&5 and ISO 5349-1&2 standards) and noise measurements in the occupational health and safety .