• 1mm OD probe microphone for real ear measurement
• Calibrator (94 dB at 1 kHz) built into pre-amplifier
• Equalized to flat frequency response beyond 10 kHz
• Convenient calibration: 100 dB SPL=100 dB uV
• Battery operation prevents ground loop problems

System Includes

• Microphone and cable assembly
• 20 probe tubes
• Velcro headband
• Earhook
• Shirt clip
• Carrying case