ह्यान्ड फ्री फ्री एलिवेटर फोन इन्टरकम सफा कोठा टेलिफोन- 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.  

सिग्नल भोल्टेज	DC5V 1A
अतिरिक्त अपरेटिंग वर्तमान	≤1mA
फ्रिक्वेन्सी प्रतिक्रिया	२०० ～ १००००० हर्ट्ज
रिंगि level स्तर	≥80dB
ग्रेड रक्षा	IP54
क्षरण ग्रेड	WF2
परिवेश तापमान	-40 ～ + 60 ℃
वायुमंडलीय दबाव	～० ～ ११०KPa
सापेक्षिक आर्द्रता	≤95%
स्थापना	भित्तामा चढिएको