Tire pressure monitoring system for RV with 4 sensors solar charging1、Applicable Models: TPMS tire pressure monitoring system has wide applications, suitable for all kinds of cars, trucks, RVs and so on. 2、4 External Sensors: This kit includes 4pcs external sensors, tire pressure and tire temperature of 4 wheels is simultaneously displayed. 3、Alarm Modes: Solar TPMS is safe to use, with high and low pressure alarm, high temperature alarm and sensor low pressure alarm. 4、Real Time Display: Tire pressure monitor can display vehicle speed, fuel consumption and battery voltage. Built in high accuracy clock chip, real time display. 5、Safe Driving: The tire pressure monitor alarms when the tire pressure and tire temperature are abnormal. The default value can be adjusted according to actual needs.