Ručni besplatni telefon dizala s interfonom čista soba u telefonu - 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.  

Napon signala	DC5V 1A
Radna struja u stanju pripravnosti	≤1mA
Frekvencijski odziv	250 ～ 3000 Hz
Nivo zvona	≥80dB
Braniti ocjenu	IP54
Stupanj korozije	WF2
Temperatura okoline	-40 ～ + 60 ℃
Atmosferski pritisak	80 ～ 110KPa
Relativna vlažnost	≤95%
instalacija	Zidna