SOUND LEVEL METER: Digital (dB)

SOUND LEVEL METER: Digital (dB)

•  A compact, portable, digital meter (3.5 digits) which measures sound levels from 30 to 130dB (A), 30 to 130dB (C) or 35 to 130dB(Linear).
•  Frequency range is 31.5Hz to 8KHz.
•  Has a fast/slow measurement option and a data hold function for peak sound levels.
•  Meets requirements of IEC651 for type II sound level meter measurement.
•  Powered by 1x 9V battery.
•  Size dimensions: (HxWxD): 210 x 55 x 32mm.
•  Weight: 230g.
•  Detailed instruction book supplied.

(Wikipedia excerpt: .."...A sound level meter (also called sound pressure level meter (SPL)) is used for acoustic measurements. It is commonly a hand-held instrument with a microphone. The best type of microphone for sound level meters is the condenser microphone, which combines precision with stability and reliability.[1] The diaphragm of the microphone responds to changes in air pressure caused by sound waves. That is why the instrument is sometimes referred to as a sound pressure level meter (SPL). This movement of the diaphragm, i.e. the sound pressure (unit pascal, Pa), is converted into an electrical signal (unit volt, V). While describing sound in terms of sound pressure, a logarithmic conversion is usually applied and the sound pressure level is stated instead, in decibels (dB), with 0 dB SPL equal to 20 micropascals. ....")

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