Sound Level Meter

The lightweight, portable meter features two scales that cover 40-80 dB and
80-120 dB ranges with the flip of a dial. Signal oscillator calibration,
a capacitance microphone, and a weighted frequency response help make this
meter accurate to ±1 dB; and battery operation lets you take it right to where
the sound is.

The meter comes with a carrying case, 9V battery, and an
instruction manual.