Specifications:
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Brand: HABOTEST
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Item Type:Decibel Meter
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Professional Digital Sound Level Meter
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Model:HT622A HT622B optional
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Material: ABS
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Battery: 3 x AAA Battery (Battery Included)
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Accuracy: ±1.5dB (standard sound pressure, 94dB at 1KHz), ± 5dB (standard sound pressure, 94dB at 8KHz)
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Frequency Response: 30Hz-8KHz
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Dynamic Range: 50dB (each measurement gear)
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Measurement Range: 30-130dBA
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Frequency Weighted Characteristics: A/C
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Dynamic Characteristics: FATS 125ms, SLOW 1sec
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Microphone: Polarized condenser microphone
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Measuring Range: 30—80dB、40—90dB、50—100dB、60—110dB、70—120dB、80—130dB
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Bargraph: Yes, Auto/Manual Range: Yes, Under/Over Range: Yes, BackLight: Yes,
Data Hold: Yes, MAX/MIN Hold: Yes, Auto Power Off: Yes, Low Battery
Indication: Yes, USB Data Logger: Yes
Note:
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*Bat-teries are not included.
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*Wind blowing across the microphone increases the noise measurement. Use the supplied windscreen to cover the microphone when applicable.
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*Calibrate the instrument before each use if possible. Especially if the meter has not been used for a long period of time.
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*Do not store or operate the instrument in areas of high temperature or humidity.
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*Keep meter and microphone dry.
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*Avoid severe vibration.
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*Remove the bat-tery when the meter is to be stored for long periods of time.
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*A Frequency Weighting: The frequency response of the meter is similar to the response of the human ear. A weighting is commonly used for environmental or hearing conservation programs such as OSHA regulatory testing and noise ordinance law enforcement. Most noise measurements are performed using A weighting and FAST Response.
