LTD105 impedance audiometer,clinical audiometer

This is an affordable, high-precision audiometer screening type. High-end hearing aids can be used when fitting hearing evaluation, and site services. Can also be used for schools, industrial and mining enterprises, military units, Driving, rehabilitation centers and training for deaf children of hearing officers and other units to conduct rapid screening, carry convenient. 
Superior performance, easy operation and reliable quality. Has the following test functions and features:
• pure tone air conduction testing, a wide range of
• provide continuous tone, pulse tone, warble tone
• masking noise on the ears (narrowband noise)
• Independent left and right channels
• Built-in microphone to facilitate communication with patients
• personalized key sound intensity output expansion, protection of patient hearing.
• Optional bone conduction testing
• Optional sound field test
Specifications
Channel: two independent signal channels and masking channel
Frequency: air conduction and free field 125-8000Hz; (bone conduction 250-6000Hz)
Masking: contralateral, narrowband noise
Intensity Range:
         Air conduction 125 - 250 Hz -10 - 90HL
                 500 - 6000Hz -10 - 120HL
                 8000Hz -10 - 110HL
         Bone 500 - 4000Hz -10 - 70HL
Accuracy: sound intensity ± 3dB, frequency drift less than 1%
Distortion: less than 3% of the air conduction; bone less than 5%
Input interface: Response switch
Output interface: air conduction headphones, bone conduction earphone, free field
Standard features: pure tone audiometry continuous tone, pulse tone and warble tone
              Sound intensity step 5dB  Sound intensity extended
Communication with patients: a microphone built-in question (50-90dB adjustable)
Response in patients with light: there is
Data Transfer: None
Display: 2 line LCD LED
Power adapter: 230V AC adapter, 9V output
Volume weight: 270 x 200 x 80mm / 2.0 kg
Standard accessories: LY06 test headphones, transponders, AC adapter
Optional Accessories: B-71 bone conduction headset

LTD105 audiomerter

Channel:Two independent signal channel and masking channel

Frequency: Air conduction and free sound field 125-8000Hz; (Bone conduction 250-6000Hz)

Masking: Pure tone test, white noise

Normal: Press INT to start sound stimulate

Inversion: Press INT to stop sound stimulate.5dB step and 5dB step continuous attenuation,1DB error.

Distortion: Air conduction: <2.5%; Bone conduction: <5%

Preheating time: Less than 10 minutes

Standard accessory: TDH39 Air conduction earphone, responder, power line

Sound pressure range