TLS-420/S & TLS-420/SW

TLS-420/S & TLS-420/SW

The Hagner TLS-420 Tunnel Entrance Photometer is designed to measure the average luminance of road tunnel entrance and its surroundings according to CIE recommendations and is used, together with a PLC/computer, to regulate the lighting inside the tunnel. The idea is to control the illumination inside the tunnel to a level corresponding to the degree of light adaptation of an approaching cardriverĀ“s eyes.

EH-150

EH-150

For regulating road tunnel lighting.

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