Hospital Audiometer Ear Diagnostic Hearing Test Portable Screening Diagnostic Audiometer

Hospital Ear Diagnostic Hearing Test Portable Screening Diagnostic Audiometer
Model : LTH-AD104

 

There are two versions of AD104:

AD104-II is superior to 104-I in two ways:
1) 104-II has the software for the Bone Conduction function while 104-I doesn't.
2) 104-II can be connected to a computer directly while 104-I can not.
 
Product Description
Extended range function: If haven't been selected, AC output restrictions smaller than the maximum output 20 dB
Input: pure tone, warble tone ±5%, 5Hz Sine wave frequency modulation.
Masking: Both air conduction and bone conduction can do masking
Computer Interface: USB data transfer interface, can transfer data to a computer, and also can set up personalized print reports.
Output: Air conduction earphone(L/R), Bone conduction earphone(L/R), Insert earphone, Insert masking.
Transducer: TDH 39 earphone (standard configuration)
Ear~Tone 5A Insert earphone (Optional)
B71 bone conduction earphone (standard configuration)
Monitor function: Optional
Feedback words: Built-in feedback words microphone. 50-90 dB SPL can be continuously adjusted in the panel.
Send test voice: Manual or automatic/ Monopulse/ Multiple-pulse
Frequency selection: If you need to fast test, you can select 250 Hz,750 Hz,1500Hz, 4k Hz, or 6k Hz.
Display: Letter-figure
Patient signal: Responder
Structure: Engineering plastic shell
Attenuator Control: Standard rotary switch (can choose Push-button switch)
Power supply: Outer type regulated power supply (standard configuration), 220-230V,50-60 Hz
Fuse: T2A Built-in fuse

Specification

• Headphones: TDH39(AC), B71-W(BC)
• Power supply: 230V AC transformer, 50Hz
• Dimension: 43*30*11cm
• Microphone: Internal

Technical Data

• Output: Air Conduction, Bone Conduction, Free field
• Frequency: AC 125-8000Hz    BC 250-6000Hz
• Masking: Air Bone and Contralateral 
• Test: AC Test, BCTest
• Tone: Pure tone, pulse tone, warble tone
• Precision: sound pressure ±1dB
• Frequency: less than ±2%
• Distortion: Air conduction: ≤2.5%  Bone conduction: ≤5%

Frequency and maximum output intensity

Standard accessory:
TDH39 Air conduction earphone
B71 Bone conduction earphone
responder, power line, USB line, CD software
audiometric leaves.