Multifunction: STEELMATE Mini One-s Equipped with mobile phone holder and vehicle aromatherapy function. Solar Power & USB Charging: 2 charging ways which ensure the tire pressure monitoring system will work continuously. 6 Alarm Modes: fast leak alarm, slow leak alarm, high pressure alarm, high temperature alarm, sensor fault alarm and sensor battery low power alarm, ensure safe driving. Wide Application: This TPMS is universal for most vehicles (range 0-8BAR/0-116PSI), NOT suitable for motorhomes caravans or trailers. Auto Backlight & Sleep & Awake Mode: STEELMATE Tire Pressure Monitoring System auto-adjustable backlight can clearly display the data in low light or strong light environment. Real-time monitoring and real-time display of data is the best helper for driving. It will enter the sleep energy-saving mode after the vehicle stops running for 10 minutes, and will automatically wake up when the car is turned on. Prolong product life while saving energy.