Tunnels


Mersey Tunnel network upgraded with IP-based public address and voice alarm system

December 1, 2022

Mersey Tunnel starting in Liverpool, has been upgraded by an IP-based public address and voice alarm system from Praesensa by Bosch. Read More

How Does a Pavement Catch Fire? And Why so Rarely?

April 2, 2015

After the underground fire in central London Martin Norris of Xtralis speculates on the cause and explains how underground fires are detected or prevented. Read More

Vivotek Launches Network Camera for Traffic Monitoring

March 13, 2015

The newly launched IP816A-HP is a 2-Megapixel box network camera with advanced image process technologies such as WDR Pro and SNV (Supreme Night Visibility). Read More



Downloads

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