Wireless, Reliable, and Completely Reusable Tunnel Solutions

Whether you are looking for a way to communicate or track personnel in an underground tunnel, monitor gases within the tunnel, or pull data from equipment, we have you covered – no matter how deep or how long your tunnel system.

Our network systems are completely integrated and scalable enabling you to start with the features you need now and expand as your needs change.  The best part is, our reliable systems are wireless, making them easy to install and 100% reusable for future tunnel projects. 

With a variety of infrastructure options, we can meet your needs for both short-term or long-term deployments.  Contact us today for a free quote that will meet your specific needs – wirelessly.


Short term inspection project? Think renting vs buying.

IWT’s portable, battery-operated tunnel communication solutions are the best lightweight, rapidly-deployable systems for continuous communications during a tunnel inspection project. Fill out a short questionnaire and we’ll provide you with a rental proposal.

Why Choose IWT?

  • Wireless – no cables
  • Crystal-clear voice, tracking and more
  • Line or battery powered
  • 100% reusable for project after project
  • Perfect for construction or inspection

TBM Interviews IWT on Tunnel Innovation

Tunneling Whitepaper

Receive our 15 page whitepaper on tunnel network considerations when selecting a tunnel communication system.

Technical Support

(434) 841-1858

Latest Tunneling News & Events


    Happening June 19-22 in Philadelphia, PA, the North American Tunneling Conference (NAT) brings together the brightest, most resourceful and innovative minds in the tunneling industry, so of course we are going to be there! Look for us at booth 614 to learn how an IWT network can be a game-changer for your tunnel project. From construction to short inspections, we have a solution right for you because being underground shouldn't mean being out of touch.  Be sure to register in advance for the conference

  • Join IWT in Vegas for RETC 2021, June 13-16

    Tired of Zoom?  We are too!  Reconnect with us at Caesars Palace and learn about our innovative underground communication, tracking and data solutions designed specifically for the tunnel industry.  Be sure to REGISTER for the event, and we’ll see you in Vegas.


  • IWT Presents 'Underground Communication Innovations' at North American Tunnel Conference

    IWT Applications Engineer Jason Jarrett presented "Underground Communication Innovation" at the 2018 North American Tunneling Conference in Washington D.C., June 25, 2018.

    Tunnels are rugged environments with large moving equipment, explosives and hazards including water, dust and gas. To date, there are few underground communication and tracking systems available for tunnel projects that support OSHA (Occupational Safety and Health Administration) compliance. After the 2006 Sago Mine disaster, research and development was performed to improve communication systems for the underground environment. Today, over 250 US mines utilize these new technologies to improve productivity, reduce costs and enhance safety. This paper explores these new technologies and provides guidance for planners through the process of selecting a tunnel communication solution. It reviews the key requirements and constraints for consideration and provides an overview of various communication and networking technologies and discusses their strengths and weaknesses.


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