What is the best WIFI antenna for tunnel and mines

We are looking at WIFI and cellular antennas that will give You 4 times the range in tunnel and mines compared to regular high gain directional antennas.
Choose the right antenna and save on access points, speed up installations and get a more robust communication with full coverage and no dropouts.
www.communica.se
www.communica....

[@poyntingantennas]

Thanks for featuring the helis in your video and highlighting the benefits of these antennas for mines and tunnels

[@Communica0se]

Our pleasure!