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Sound Level Meter Acoustical Calibrator 94dB & 114dB Output Levels for 1 inch and 1/2 inch mic

Product ID : 11396083

Galleon Product ID 11396083
UPC / ISBN 600316559393
Shipping Weight 0.8 lbs
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Model ND-9
Manufacturer GAIN EXPRESS
Shipping Dimension 6.5 x 3.39 x 2.01 inches
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Color Sound Calibrator Without LCD
Package Quantity 1
UPC 600316559393

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  • Two output levels of 94dB and 114dB with Output frequency of 1000±0.1%Hz (allows calibration with A,B,C or D weighting networks or linear)
  • Fits ½ inch and 1 inch microphones (includes ½ inch adapter)
  • Easy One handed operation with low battery indicator
  • Battery life approx. 100 hours and Conforms to IEC942 Class 1
  • Altitude Effects: Approximately0.1dB decrease for each 2000ft increase in altitude from the sea level to 12,000ft elevation or comparable atmospheric pressure change (approx. every 50mm of Hg decrease)


The calibrator generates these fixed sound level signals for calibration of sound level meters. This model works with any digital sound level meter. The unit ships with a ½" adaptor installed to accommodate sound meters and microphones with 1" or 1/2" microphone. Features To correct for atmospheric pressure in areas of high altitude the transducer diaphragm It has two output levels of 94 dB and 114 dB. Calibrated to produce 94dB at sea level. For each 2000ft of elevation sea ND-9 produces 0.1dB less than the 94dB rating. Specifications Output Sound Level: 94db & 114db Accuracy: ±0.3db(20°C, 760mm Hg) Frequency: 1000±0.1%Hz (allows calibration with A,B,C or D weighting networks or linear) Temp. range: -10~50°C (14~122 °F) Storage (with battery removed) -40~65°C (-40 ~ 149 °F) Extremely low influence of static pressure Temp.coefficient : 0 ~ 0.01dB/°C Power Supply: 9v Battery Battery life approx.100 hours Package Size: 17cm x 9cm x 6cm Package Weight: 0.39kg Set Includes 1 x Sound Level Meters Calibrator 1 x 9V Battery installed (FREE) 1 x English Instruction Manual Standard factory packaging box