 
Another precision tool from SKF.
This handheld sound pressure meter to simplify the recording of
sound levels in industrial environments. Ideal for OSHA studies
of industrial noise. Sample environmental noise of between 30 to
130dB. Simple to use, featuring a backlit display with numeric
or bar graph for quick analysis.
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Meter Frequency range: 31.5
Hz to 8 KHz Measuring level range: 30 to 130 dB LCD Digital
display: 4 digits
Resolution: 0.1 dB
Display update: 0.5 s
Analogue display: 50 segments bar-graph Resolution: 1 dB
Display update: 100 ms
Time weighting: Fast (125 ms), Slow (1 s) Level ranges: Lo =
30 ~ 80 dB, Med = 50 ~ 100 dB, Hi = 80 ~ 130 dB,
Auto=30~130 dB Accuracy: ±1,5 dB (ref 94dB @1KHz) Dynamic
range: 50 dB
Power supply: 9V Alkaline, IEC 6LR61
Typical Battery life: 50 hours (with alkaline battery)
Operation temperature: 0 to 40ºC (32 to 104º F)
Operation humidity: 10 to 90% RH
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