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> Digital sound noise level meter built-in calibration
Digital sound noise level meter built-in calibration
Digital Sound Noise Level Meter Built-in Calibration
New Multifunctional Digital Sound Noise Level Meter
Display: 14mm (0.55 ) LCD (Liquid Crystal Display) with backlight
Frequency range: 20.0Hz~12,500Hz
LP:30~130dB (A) 35~130dB (C) 35~130 dB (F)
Leq :30-130dB ( 10s, 1min, 5 min, 10min, 15 min, 30min, 1 hour, 8 hour, 24 hour)
Built in Calibration Signal: 94dB at 1KHz (Sinusoidal)Microphone: electret condenser typeDC output: 0-1.3V 10mV/dBAlarm Set: 30-130dB Alarm output: LED & OPTIONAL relay contact (NC)
Power supply: 4x1.5v AAA (UM-4 battery)External DC power Supply: 6V DC, 100mA
Size: 236 x 63 x26 mm / 9.3X2.5X1
Weight: 170g/0.37lb (without batteries)
3.Operation Manual 1pc. 4. Windscreen 1pc.
1.ND9 sound level meter calibrator
3.External relay 4. AC adaptor
want software for measurement data collection, edit, report and print, click