Hand free elevator phone intercom clean room telephone-JWAT403

1. The phone can form an independent telephone communication system with program-controlled switches and couplers.  

2. The phone can be connected directly to the telecommunications network.  

3. After the  composition of the call system, each phone is an independent station.  The malfunction of any phone doesn’t affect the whole system work.  

4. After the  composition of the call system, the product has an automatic gain  function, and the voice does not vary with distance or telephone  quantity.  

5.Telephone circuits  within the integrated circuit using internationally accepted  double-sided, with hair the exact number, call clarity, job stability,  etc.  

6. Stainless steel housing, high mechanical strength, strong impact.  

7. The buttons are flat  and smooth without relief; stainless steel, acid and alkali resistance,  chemical corrosion resistance, using various cleaning agents for  surface cleaning.  

8. Hands-free keypad  design, to avoid cross-contamination; phone built-in circuit  anti-interference ability, stable voice quality, clarity.  

9. Volume can be adjusted.  

10.When the telephone line is busy, the phone will automatically hang up.  

11. There’s an area to place an instruction card in front of the phone.  

Signal voltage	DC5V 1A
Standby operating current	≤1mA
Frequency response	250～3000 Hz
Ringing level	≥80dB
Defend Grade	IP54
Corrosion grade	WF2
Ambient temperature	-40～+60℃
Atmospheric pressure	80～110KPa
Relative humidity	≤95%
Installation	Wall-mounted