Details：
304 stainless steel casing, this phone has features such as one button automatic alarm, one button cyclic dialing, and one button automatic intercom. It is an essential communication device for elevator emergency assistance and a convenient communication device for clean room intercom. The default hands-free normal dialing mode requires wearing headphones.

Details：
It is specially designed for emergency help phones in van elevators, clean rooms of pharmaceutical factories, dust-free workshops and other places. This phone has features such as one-key automatic alarm, one-key cyclic dialing, and one-key automatic intercom.

Details：
It is compatible with many brands of programmable telephone exchanges on the market and is an emergency call telephone specifically designed for box elevators, pharmaceutical cleanrooms, dust-free workshops, and other places. This telephone has the characteristics of one key automatic alarm, one key cyclic dialing, and one key automatic intercom. It is an essential communication device for elevator emergency assistance and a convenient communication device for clean room intercom.

Details：
Stainless steel 304 material, surface brushed treatment, strong wear resistance and corrosion resistance. The shell has a grounding device and is completely isolated from the internal electrical circuit, which has a certain electromagnetic shielding effect. It has dust-proof, noise resistant, and anti violent characteristics, and the overall protection level of the machine reaches IP54.

Details：
The IP call intercom phone supports the standard SIP protocol and can be compatible with numerous digital program-controlled telephone exchanges or IPPBX brands on the market. It is an emergency call phone specifically designed for broadcasting rooms, duty rooms, pharmaceutical cleanrooms, dust-free workshops, stations, airports, and other places.

Details：
The IP call intercom telephone supports the standard SIP protocol and is compatible with many brands of digital programmable telephone switches or IPPBX on the market. It is an emergency call telephone specifically designed for pharmaceutical cleanrooms, dust-free workshops, stations, airports, and other places. This telephone has the characteristics of one click automatic alarm and automatic intercom. It is an essential communication device for emergency assistance in public places, and also a convenient communication device for duty room intercom.