Box has been opened. Item looks to be unused. Plastic is still on screen. Includes instructions and installation guide. This TPMS system from TST Truck System Technologies is the perfect addition to any vehicle. It comes with four sensors and is designed for use with tire pressure monitoring systems. With its reliable brand and advanced sensor technology, you can trust this system to keep you safe on the road. The sensors are specifically designed for use with tire pressure monitoring systems, ensuring that you get accurate readings every time. Whether you’re driving a truck or a car, this TPMS system is a must-have accessory for any vehicle. So upgrade your car or truck today with the TST Truck System Technologies TPMS W/ 4 Sensors TM-507RV/SE – Tire Pressure.