Features:High-efficiency solar- panels, super battery life. Large-capacity built-in metal lithium battery, unimpeded battery life in cloudy days.Accurately monitor the tire preure stability value throughout the entire proce. LCD high-precision liquid crystal display, high volume alarm sound warning.Multiple tire preure units are available, long receiving distance, stable signal, support tire position interchange.Air preure setting range: 0.1~6.0BATemperature setting range: 60~110Working temperature: -20~80Storage temperature: -30~85Power-on voltage: DC 5VFrequency: 433.92MHz20.00MHZ.Portable installation, long-lasting battery life, beautiful appearance. Real-time monitoring keeps you and your car away from risks.Specification:Material:ABSSize:As Picture ShownColor:BlackPackage Includes: 1x Tire Preure Sensor/1x Tyre Preure Gauge+4x Sensornote: 1.Please allow 1-2cm errors due to manual measurement, make sure that you do not mind before you order.2.Due to the difference between different monitors, the picture may not reflect the actual color of the item.