Casella Cel CEL- 240 Sound Level Meter, 30dB to 130dB, with RS Calibration
4, IEC 60651, IEC 61672, DOSE Measurement: Yes, Weighting: A, C, Display Type: LCD, Battery Type: AAA, Calibrated: RSCAL, Fast/Slow Time Averaging: Both, Data Logging: No, Interface Type: USB, Maximum Operating Temperature: +40°C, MPN: CEL-240.Casella Cel CEL- 240 Sound Level Meter, 30dB to 130dB, with RS Calibration, Accuracy Class: ANSI S1.