Overview of tunnel emergency telephone PT-M-MT2
Analog weather resistant tunnel emrgency telephone are engineered to deliver reliable, high quality communications in extreme harsh environments. resulting in high reliability of the product long MTBF.
The shell electrostatic spraying powder coat finish available in yellow or grey, durable, eye-catching, and resistant to discoloration also easily cleaned. telephones can be wall mounted, or design the mounting bracket according to actual requirements.
Programmable auto dial and auto answer function, press to call help direct connected, self stop if the other side hangs up. incoming calls with very loud sound.