Center 390 Data Logger Sound Meter
Complies with IEC 61672-1 Class 2 Standard
32000 Records Data Logger
Manual Reading Recording Memory (99 points)
LCD Recording Readout (99 memory recording)
PC Interface with Windows Software
AC/DC Signal Output
Resolution 0.1 dB
Measurement Range: 30 dB to 130 dB
Accuracy: ± 1.4 dB (ref 94 dB @ 1 KHz)
Sampling Rate: 2 times/sec
Frequency Weighting: A/C
Time Weighting: FAST, SLOW
Frequency Range: 20 Hz to 8 KHz

Microphone: ½ inch Electret condenser microphone
Power Source: 1.5V AA size battery x 4
Battery Life: 30 hours (Alkaline)
Operating Condition: 0 to 40 °C (<80%RH)
Storage Condition: -10 to 60 °C (<70%RH)
Dimensions: 272(L) x 83 (W) x 42(H) mm
Weight: Approx. 390 g

Accessories: Batteries, Manual, Adjusting screwdriver, Windscreen, windows software, USB Cable