Noise reducing telephone handset in noisy environment A20
As an industrial telephone manufacturer,how to make our products suitable in noisy environment like steel plant,seaport warehouse or sailing ship by reducing the background noise is the key factor to solve.
For outdoor environment noise, we chose different kinds of speakers and microphones for the handsets to match with various motherboard to reach high sensitivity or noise reducing functions; hearing-aid speaker could also be chose for hearing-impaired person and noise reducing microphone could cancel the noise from background when answering calls.
PVC curly cord (Default), working temperature:
- Standard cord length 9 inch in retracted, 6 feet after extended (Default)
- Customized different length is available.
2. Weather resistant PVC curly cord (Optional)
3. Hytrel curly cord (Optional)
4. SUS304 Stainless steel armored cord (Default)
- Standard armored cord length 32 inch and 10 inch, 12 inch,18 inch and 23 inch are optional.
- Include steel lanyard which is anchored to telephone shell. Matched steel rope is with different pull strength.
- Dia: 1.6mm, 0.063”, Pull test load:170 kg, 375 lbs.
- Dia: 2.0mm, 0.078”, Pull test load:250 kg, 551 lbs.
- Dia: 2.5mm, 0.095”, Pull test load:450 kg, 992 lbs.
It could used in steel plants,seaport warehouse or sailing ship where has noisy environment.
|
Item |
Technical data |
|
Waterproof Grade |
IP65 |
|
Ambient Noise |
≤60dB |
|
Working Frequency |
300~3400Hz |
|
SLR |
5~15dB |
|
RLR |
-7~2 dB |
|
STMR |
≥7dB |
|
Working Temperature |
Common:-20℃~+40℃ Special: -40℃~+50℃ (Please tell us your request in advance) |
|
Relative Humidity |
≤95% |
|
Atmospheric Pressure |
80~110Kpa |
Any appointed connector could be made as customer's request. Let us know the exact item No. in advance.
If you have any color request, let us know the Pantone color No.
85% spare parts are produced by our own factory and with matched test machines, we could confirm the function and standard directly.
