Calibrators/Injectors
Setting standard sound level at 94dB and 114dB.According Standard ANSI S1 4-1984 and IEC 942 1988 Class 21/2 inch microphone adapters provided.Low battery indicator. Class 2 Dual Level Calibrator
IEC 60942:2003 Class1/ANSI S1.40-1984. ● Output sound level : at 94dB and 114dB. ● Frequency : 1KHZ ±1%, Class1, A ● Accuracy : 94±0.3dB 114±0.5dB Specifications ● Sound pressure levels : at 94dB and 114dB. ● For 1/2" condenser microphone calibration. ● Low battery indication. ● Harmonic waves distortion ±3%. ● Output feedback detection. ● Power: 9V battery 006P or IEC6F22 or NEDA 1604 ● Operation environments : 23.0oC ±3oC <85%RH ,850mbar~1050mbar, ≦2000M