Outdoor wall mounted waterproof and moisture-proof IP66 pipe gallery tunnel emergency VOIP telephone mine dust phone

· Shell: Cast aluminum alloy, with a thickness of 5 mm, sturdy, durable, and well sealed; The surface is sprayed with imported reflective paint, with a striking color that will not fade for 5-10 years

· Door cover: Under slight external force, the door cover can automatically rebound, and the stainless steel lock catch automatically locks the door cover to prevent it from loosening. The direction of opening the door cover can be determined based on the direction of travel

· Hook: Made of stainless steel material, using magnetic induction to hook, without the need for fork springs and without contact gaps

· Keys: silicone keys, wear-resistant, corrosion resistant, anti-aging

· Handle: ABS engineering plastic, integrated structure, good sealing performance, resistant to cracking and twisting without deformation, and does not burst at minus 35 degrees Celsius

· Wire material: Teflon wire, acid and alkali resistant, high and low temperature resistant, anti-aging, no fire

· Waterproof glue: Imported waterproof glue is used, with high viscosity, high temperature resistance, high pressure resistance, and a waterproof life of more than 10 years

· The handle receiver, keyboard, buzzer, circuit board, and all accessories of the shell adopt a multi-layer waterproof and dustproof structure. It has three-level waterproof and dustproof functions, and the overall level of the machine meets the standard GB4028-93IP66/IP67

· The phone has good stability and strong anti-interference ability, meeting the standard GB/T 15279-94