Your #1 Online Source for RV Parts & Accessories. TST-507-FT-4-C New Generation Color Monitor 4 Sensor Tire Monitor System. Ensure safety and prevent tire blowouts by installing the TST TST-507-FT-4-C Cap Sensor Tire Pressure Monitoring System (TPMS). This system accurately monitors tire pressure and temperature simultaneously in real time, while offering you the ability to custom program high and low PSI settings on up to 4 axles. Detect leaks and temperature variances quickly and reliably. Installation wrenches offer protection from theft. Powered by user replaceable batteries (CR-1632). Easy to remove during seasonal storage to conserve and extend battery life. Each sensor can get programmed individually, so you can monitor per axle. Can handle up to four trailers, and handle up to 110 wheels. Large illuminated display shows PSI and temperature simultaneously. Built in rechargeable lithium ion battery runs up to 36 hours wirelessly. Operates on vehicle 12-volt DC or hardware. Can handle up to 218 PSI. HI TEMP alarm is adjustable to be as low as you want. One (1) Display, Four (4) Sensors, Suction Cup, Repeater & Manual. Welcome to RV Parts Warehouse offering the most highly demanded products from the top manufacturers in the RV industry. Whether you are looking for RV Supplies, Camper Parts, RV Parts, RV Accessories, Travel Trailer Parts or Motor Home Parts we carry it all at discounted prices. Our RV Parts SuperStore carries everything from RV Appliances, to RV Awnings, to Lighting, to Hitches & Receivers, to Towing Accessories, to RV Plumbing, to RV Sanitation, to RV & Trailer Covers and much more! Any questions or concerns regarding this item/product please message us.