Used To Install TPMS System On Vehicles Not Originally Equipped With Original Equipment Systems; Monitors All Four Tires Pressure And Temperature; With One Solar Powered And Wireless Display And Four Sensors. Schrader TPMS Retrofit Kit for Passenger Cars and Light Truck. TPMS systems monitor proper tire pressure to maintain vehicle performance and support. Items deemed missing/or lost in transit from carrier, a claim must be filed. Note: Photos do not always represent the actual product. For kits, photo might show entire kit and listing is only for one component. If in doubt, please reach out to our customer service team. If for any reason you are not happy with your order or service you received, please reach out to our customer service team to resolve this issue. Please allow a 2-day business timeline. Prices and quantities can fluctuate daily. In these cases, customers will always receive 100% of their funds back.