Measurement Range: 30 - 130dB Time Weighting FastSlow Frequency Weighting AC MaxMin Function Complies With IEC 61672-1 Class 2 Standard This sound level meter meets IEC Type 2 requirements and offers high accuracy for critical measurements. The Center32 features overunder range indicators for each of the 3 measurement ranges, a digital analog bargraph and the ability to keep track of MinMax readings. Features include; High accuracy of 1.4 dB meets Type 2 standards, Triple range measurement (60dB dynamic range), A C frequency weighting, Fast Slow time weighting, Large, Easy-to-read LCD display, Digital analog bargraph, Data hold and MinMax hold, ACDC output signal for use with dataloggers, Tripod mount for long-term monitoring, Low battery indicator and auto shut off. Made In Tai Wan