How much does this cost to the nearest dollar?

TST 507 Series 6 Flow Thru Sensor TPMS & Repeator | Tire Pressure & Temperature Monitoring System RV
SKU UOM EA; Application RV | Trailer; Number of Wheels 6; Type of Display Color; Type of Sensor Flow-Thru; Valve Stem Installed Metal Only 6 Sensor Tire Pressure & Temperature Monitoring System w/ Repeater; NOTE Metal Valve Stems Required for Flow-thru Sensors A Repeater is included in every TST Kit to help boost sensor signal to the Display; Display can Monitor the Towing Vehicle and up to 4 Trailers and 115 Tires, including Spares Monitors Tire Pressure and Temperature in Real Time; Increase Safety through Tire Pressure and Temperature Awareness; Visible, Audible, and Textual Alerts Accurate Pressure Reading Range of

Price is $399.00

Price: $399