Features a measuring linear range of 90dB, supports real-time 1/1 and 1/3 octave analysis, suitable for acoustic measurement and noise monitoring. - 90dB measuring linear range - Complies with IEC 61672-1 class 2 standard - TFT-LCD color display - Data transfer via USB interface - Includes clock and date display - Internal or external trigger for measurement start - AC and DC output functions - micro SD card capacity of 4GB - Comes with a variety of accessories