Sound level meter ideal for use in environmental noise experiments! This meter is perfect for experiments with environmental noise, speech, and hearing
The scale matches the frequency response of the human ear, so measurements of sound levels correlate closely with subjective ideas of sound audibility
Uses two ranges: Lo (40-80dBA) and Hi (80-120dBA)
Battery check function lets you know when a new battery is needed
Easy to calibrate - the scale is calibrated in 2dBA increments