Description of π Enhanced Sound Acoustical Calibrator Output Levels
Two output levels of 94dB and 114dB with Output frequency of 1000Β±0.1%Hz (allows calibration with A,B,C or D weighting networks or linear). Fits 1β2 inch and 1 inch microphones (includes 1β2 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).