Description Air and bone conduction audiometer using pure tone, speech, and sound-field testing, with narrow-band white noise masking. It requires less than 10 minutes to preheat, reducing waiting times for patients and can be operated quickly and easily using the keyboard. The harmonic distortion is low: less than 2.5% for air conduction, and less than 5% for bone conduction. This device comes with a 1-year warranty. Specifications Attenuator: 1/2/5dB Allowance: Less than 3dBHL Amplitude (SPL) Range: Air conduction in medium frequency from -10 to 12-dBHL; Bone conduction medium frequency from -10 to 75dBHL Masking: White Noise (Narrow Band) Harmonic Distortion: - Air conduction: Less than 2.5%, - Bone conduction: Less than 5% Static Pressure: - TDH 39:4.5N±0.5N, - B-71:5.4±0.5N Transport and Storage: - Temperature: -40°C to 35°C, - Humidity: 10% to 90% (no condensate), - Air pressure: 500hPa to 1060hPa Operating Environment: - Operating Mode: Continuity, Temperature: -10° to 35°C, Humidity: 30% to 90% (no condensate), Air Pressure: 860hPa to 1060hPa Preheating Time: - Less than 10 minutes Specificationss: - Dimension: 320*220*91mm, Power source: DC9V, Power consumption: Less than 30W Standards: - Audiometer: Meets EN60645-1, EN60645-2, EN60645-4, and GB/T7341.1, - ECM: Meets EN60601-1-2
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