Fast and reliable detection of smoke in tunnel safes human life and avoids material damage. The SMOTEC450 from SICK MAIHAK detects smoke partikles in tunnels within seconds and alerts the control system immmediately - long before the visibility is reduced too much by dense smoke. False alarms caused by fog are eliminated by heating up the drawn air.

Double safe, because our device monitors itself.
The automatic check cycle of the SMOTEC450 checks all important components of the system each day - without tunnel closure and personnel costs.