AZ 8928 Sound Level Meter

AZ 8928 Features
The AZ 8928 has an LCD digital display and 6 function buttons that provide access to a variety of useful features.

• Digital Display: Large LCD screen, 0.1 resolution updated every 0.5 sec. with a 4 digit readout.
• On/Off Button: A black button on a red background instantly powers the unit on or off.
• Record Button: Activating the Record feature will start the meter tracking the high and low sound measurements as they happen. Digital readings will appear on the screen as well as an active bar graph below. This does not record to a hard drive or a computer.
• Range Button: Toggles between Auto and Manual Range select. There are 4 measurement ranges which are displayed in 10 dB increments: 40-70dB, 60-90dB, 80-110dB, and 100-130dB. The Auto setting will display LO or HI for the sound level.
• Weighting A/C Button: The startup default is A weighting which allows the meter to respond in the same manner as the human ear with increases and decreases over the frequency spectrum. The C weighting is best for flat sounds with no ups and downs.
• Fast/Slow Button: Select a fast or slow response time for readings according to your needs. The default setting when you turn on the meter is Fast. OSHA testing uses a slow response with A weighting.
• Max Hold Button: Selecting the Max Hold button will freeze the maximum sound level reading on the screen. It will remain there until a higher level of sound is detected.
• Automatic Shutoff: The meter will turn off automatically after 20 minutes unless you press the ON/OFF and Max Hold buttons simultaneously to override the feature.
• Low Battery Indicator: When the battery reaches a critical low power state, a low battery BAT message will be displayed on the lower left of the screen.
• Sound Measuring Range: The meter measures sound levels between 40 ~ 130 dB.
• Measurement Frequency Range: The frequency range is 300Hz ~ 8K Hz.
• Product Dimensions: 7.6 x 3.5 x 1.9 inches
• Accuracy: ¡À2dB(at 94dB, 1K Hz) I honestly have no clue what that first number means but it was in the product information so I've included it here.
• Microphone: 10mm (Dia) Electric Condenser Microphone. This seems to be sensitive enough to pick up sounds from a good distance away.

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