Roadefend's main business includes providing RDT401 fatigue driver, RDT402 ADAS. We have installed more than 11000 fleets since 2009 year. We are the No.1 developer & manufacturer of vehicle safety alarm equipment. We have customers in South America/ Southeast Asia/ Middle East. Our product will definitely satisfy your requirement. Driver Fatigue Monitor RDT401B is a driver and vehicle safety product which can accurately predict and warn drivers of falling asleep, distraction, calling, yawning etc at wheel to protect their lives and avoid damage to vehicles. Anti Collision Warning RDT402A is assisting the driver to keep in lane and keep distance, avoiding trafic accident by lane departure; Reducing the risk of forward collision by driver's distraction. When the vehicle passively departure the land due to driver's distraction or fatigue, get too close with front car, or there's other vehicle overtake in short distance, the system will automatically alarm until driver correct the driving direction.