Sound Level Meter Acoustical Calibrator 94dB & 114dB output levels for 1 inch and 1/2 inch mic
[Product Information]
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)