Medical Portable Audiometer Diagnostic Machine with Headphone
1. Channels: Two independent output channels 2. Air conduction: (1) Frequency: 250Hz,500Hz,750Hz,1000Hz,1500Hz,2000Hz,3000Hz,4000Hz,6000Hz,8000Hz; (2) -10dB≤Hearing level for Testing≤110dB. 3. Bone Conduction: (1) Frequency: 250Hz,500Hz,750Hz,1000Hz,1500Hz,2000Hz,3000Hz,4000Hz,6000Hz. (2) -10dB≤Hearing level for Testing≤60dB 4. Signal for testing: Pure tone, warble and narrowband noise. 5. Frequency accuracy: The allowable error of frequency for this audiometer is ±2%. 6. Microphone: Built-in microphone or external gooseneck style microphone (optional) for easy communication with the testee. (Volume: 0-20 adjustable) 7. Display: LCD display, double-line accurate numerical display. 8. Distortion: Air conduction less than 2.5% while bone conduction less than 5.5% 9. Accuracy: Continuous attenuation / stepping 5dB, error 1dB 10. Masking: masking on the opposite side of the tested ear during air conduction and bone conduction tests. 11. Protection function: Protect the testee's hearing from damage as much as possible 12. Computer interface: USB 2.0 data transmission interface, can be connected to the workstation forprinting test report 13. Online diagnosis: self-analysis and generation of occupational noise-induced hearing loss diagnosis report according to the "National Occupational Health Standards of the People's Republic of China" 14. Operating environment: Temperature 10 °C ~ 40 ° C, relative humidity 30% ~ 90%, pressure 86 kPa ~ 106 kPa 15. Warm-up time: 5 to 10 minutes 16. Mean time between failures ≥1000h 17. Host size: 325mm*195mm*27mm 18. portable, lightweight: weight: the host is about 910g, the gross weight is about 4.6kg 19. Power adapter: Input 100V-240V ~ 50/60Hz 1.5A; Output DC 12V/4A 20. Built-in battery: nominal voltage 7.4V/5000mAh; continuous operation≥8 hours, standby operation mode≥1 week
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