Weatherproof Expand Volume Phone

الوصف

1. Robust aluminum alloy die-cast body, Vandal resistant and tamper-resistant hardware, and simple installation.

2.  Can use in a strong noise environment
3. Door cover: orient automatically and good self - closing, convenient for use.
4.  Works with any standard telephone line. No external power or battery back up required.
5. Handset: made of special engineering plastic, high anti-knock resistance, Weatherproof, armoured cable optional. 

6. Magnetic reed hook switch .
7.  Noise-Canceling Microphone option is recommended for loud environments.
8.  Handset integrity wiring to enable the telephone system to check if the telephone unit is still operational.

9. All of the components including keypad, buzzer, circuit board and cabinet are designed to be multi - layer waterproof and dust - proof which is up to Class III grade. The whole machine is up to national standard GB******3 IP *6.

*0. Phone is provided with high stability, high anti-jamming capability standard to GB/T *******4.

*1. High power amplifier(****0W),In a Open ground, within one hundred meters can be clear to hear
*2. can be set to provide automatic dialing, do not need this feature users can cancel it

*3. shell die-casting, shell weight *0 KG, explosion-proof surface with *7mm, very strong, waterproof anti-destruction over all domestic weatherproof phones