New Product Alert – LUMIOS MkII Tunnel Luminance Photometer

Thu 28 Feb 2013

Tunnel Sensors launches the next generation luminance photometer, the LUMIOS MkII, designed specifically for use in tunnels.

The aim of road tunnel lighting is to ensure that traffic can approach, travel through and leave a tunnel safely, both during the day and at night.

The LUMIOS MkII measures the level of luminance, or brightness, in and around the tunnel entrance to ensure that the visual perception of drivers is maintained by avoiding sudden variations in lighting levels and potential “black hole effect” when entering and exiting a tunnel.

The LUMIOS MkII Luminance Photometer has been designed to enable it to withstand extremes of weather conditions. The complete electronic system is contained within a water-proof, heated housing of 316 Stainless Steel and has an operating temperature range from -30oC – +70oC which ensures stable readings across all prevailing ambient temperature conditions.



The LUMIOS MkII is a self-contained intelligent analyser and offers the option of either analogue output or serial comms in the form of ModBus RTU via RS485. With a “walk-up” comms port, free utility software and data logging, the LUMIOS MkII is simple to set-up and use.

For further information please contact our sales team.

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We have worked with Tunnel Sensors for several years. The equipment is sensibly priced, reliable and very easy to commission and service. The after-sales backup is excellent.

Dave Grant
Emaccs Ltd., UK

Tunnel Sensors


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