Graphic Display Sound Meter, Sper Scientific
Covers 30-130dB in the A scale and 35-130dB in the C scale with a resolution of 0.1dB and an accuracy of ±1.5dB
Contains many advanced features including: An even larger LCD display with an analog bar graph, auto-ranging, min/max functions and a USB computer interface. Another special function allows you to accurately measure equipment noise in the presence of high background noise.
Model 840028 meets ANSI S1.4 and IEC 651 Type 2 standards, and includes A and C decibel frequency weighting scales, fast or slow response, AC or DC output, low battery indicator, peak function and can be calibrated in compliance with OSHA using Acoustical Calibrator 850016.
Certifications: CE approved. N.I.S.T. traceable certificate of calibration (for certified model only).
Accessories information: Simply place the calibrator on to the digital sound meter’s microphone, turn on the calibrator, and adjust the decibel meter's reading to either 94 or 114 dB. Operates at a frequency of 1KHz ±4% and with an accuracy of ±0.5 dB. Built in battery check. Easily portable for field use, it comes with a carrying case, adaptors for 0.5 and 1" microphones, instructions and a 9-volt battery. It conforms to ANSI S1.4-1984 and IEC942 1988 Class 2 standards for acoustical calibrators. 5-year warranty.
Ordering information: Comes ready to use with a windscreen, 9V battery, instructions, and a hard shell carrying case. Five year warranty.