| Customization: | Available |
|---|---|
| Classification: | Hearing Test Equipment |
| Type: | Hearing Aid |
Suppliers with verified business licenses
Audited Supplier Audited by an independent third-party inspection agency
Hearing test equipment
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
|
HZ |
AC |
BC |
|
125 |
-10~90 |
|
|
250 |
-10~100 |
-10~45 |
|
500 |
-10~120 |
-10~60 |
|
750 |
-10~120 |
-10~60 |
|
1000 |
-10~120 |
-10~70 |
|
1500 |
-10~120 |
-10~70 |
|
2000 |
-10~120 |
-10~70 |
|
3000 |
-10~120 |
-10~70 |
|
4000 |
-10~120 |
-10~60 |
|
6000 |
-10~110 |
-10~50 |
|
8000 |
-10~110 |
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