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Sleepy drivers are not only a threat to themselves but to other drivers as well. This warning light mounts on the roof of the vehicle and will flash whenever the driver fatigue alarm (RVS-350) goes off alerting surrounding drivers to pay attention. ***Note: The RVS-350-WL is not an independent system and only works with the RVS-350/RVS-350P Driver Fatigue Monitoring Systems.
