SYGAV Auto Car Tire Pressure Monitoring System TPMS External or Internal Sensor Optional is a highly advanced monitoring system designed specifically for car owners. This product comes with either an external or an internal sensor option that allows for easy and accurate monitoring of tire pressure. Our product is developed in our very own factory and is known for its high accuracy and reliable performance. This TPMS is an essential addition to any car owner's toolkit, as it helps to maintain optimal tire pressure, ensuring safe and fuel-efficient driving. SYGAV Auto Car Tire Pressure Monitoring System TPMS is designed to keep you informed about the status of your tires, making your journey safer and more comfortable. So, make a smart choice and get your hands on this highly advanced monitoring system today!