KTH high performance explosion-proof telephone, mining explosion-proof phone 
 The use of modern electronic technology, fully integrated circuit is a high-performance, high reliability of the communication terminal. Supporting and the KTA17 safety coupler, and the existing ground switches or Scheduling switchboard connected with the composition of the coal mine production scheduling communication system. 
 Automatic telephone the KTH type intrinsically safe, not only for the coal mine, can be used in harsh working environment of high temperature, high humidity, heavy pollution. The main features 
 Anti-static material in a phone shell, waterproof, dustproof, anti-corrosion protection class of IP65, apply to the extremely harsh environment. Widely used in high temperature, harsh working environment Gaozao sound, high humidity and heavy pollution, such as: power plants, chemical plants, coal preparation plant, steel mills, ports, etc. 
 Two wall-mounted switch hook, using a newly developed institutions, without any moving parts on the phone. 
 3 keyboard is fully sealed with a luminous touch of a button, the ringing call sound and light show, and there is an emergency call, hang up and redial key. 
 4 has a call from the gain adjustment switch, according to the distance of the phone and scheduling switchboard gain adjustment sent by the then applicable to coal mine long distance calls, bad wiring insulation. 
 5 Weight: 3.3KG 
 Specifications: 260 * 190 * 75 (mm)