Measurement and measurement indicators
Measurement of Environmental Noise (A weighted): 30 to 130 dB, 0.1 dB resolution, accuracy +/- 1.5 dB
Measured mechanical noise (C-weighted): 35 to 130 dB, 0.1 dB resolution, accuracy +/- 1.5 dB
Frequency response: 31.5 Hz to 8 kHz
Temperature coefficient: for each degree Celsius 0.1 dB (decibels) (<18 oC and> 28 oC pm)

Accessibility
Regular measurement mode (Fast) and random noise, the average sound level mode (Slow) selected
Maximum Minimum
Data Retention
Backlight
Auto Power Off

1 / 2 inch condenser microphone
9V battery (about 50 hours time)
Operating temperature: 5 oC to 40 oC, relative humidity, "80%
Storage temperature: -10 oC to 60 oC, relative humidity "70%
Work :0-2000 m above sea level
Electrical Standard: IEC 651 2-type; ANSI 1.4 2-type
Calibration period: 1 year
Size: 200 x 55 x 38 mm
Weight: 233 grams (with battery)

Fluke-945 Sound Level Meter
One 9 V battery
User manual