Emergency telephone is in the place where the accident that easy to install for emergency telephone for help, help, help, as in the highway of highway roadside emergency telephones, waterproof telephone for the coal mine explosion-proof telephone used in coal mines, oil Wells, used in tourism scenic tourists such as telephones are belongs to the category of the emergency telephone. The main function of the emergency telephone is that, when the accident occurs, the telephone which can be used and must be able to be used for emergency call for help has completely different requirements for its work according to different use environment.
The end of Fire alarm systems knzd-41 Fire alarm telephone is placed next to the construction site of the tunnel, such as the shield machine or the excavator, and the construction personnel can report the field operation data to other colleagues and the command center through fire alarm telephone.
Explosion-proof telephone used in power plants, chemical plants and other inflammable and explosive places, have a coupler, also known as the coupler explosion-proof telephone. Is explosion-proof communication system terminal equipment, the basic function of a common phone. Explosion-proof telephone directly connected to the 24 ~ 60 v used for automatic telephone exchange small switch (or machine) and the user can use.
The RFID video door intercom walkie-talkie is a walkie-talkie that is installed on the access control system and can make video calls. It is mainly composed of an intercom host, an intercom extension, a display, a UPS power supply, an electric lock and a door closer.
SOS telephone is specially used for emergency telephone, pick the machine can automatically call the emergency phone line. Commonly used in mines, tunnels, scenic spots, and other unexpected events may occur.
Elevator intercom system is mainly composed of management of the host, cage extension, room extension and other connecting lines, but also optional trunk box, monitoring and statistics software and hub box to enable the system to achieve three-party or even multi-party communication, is a series of security intercom industry.