Are External Tire Pressure Monitors Accurate?

[HaileyMarie]

External tire pressure monitors are relatively accurate, but their precision is inferior to that of internal tire pressure monitors, as they are more susceptible to environmental factors. Advantages of External Tire Pressure Monitors: External tire pressure monitors are easy to install. However, since the sensors are exposed to the external environment year-round, they face more complex environmental challenges and are prone to being dislodged or stolen. Therefore, for car owners who frequently drive long distances, an internal tire pressure monitoring product is more suitable. Additionally, when driving at high speeds, the tires are in rapid motion, causing the gas convection speed to be very fast. As a result, the tire temperature readings from external tire pressure monitors may have a 1-2° error compared to internal tire pressure products, which is considered normal. Introduction to Internal Sensors: The batteries of internal sensors are generally encapsulated within plastic casings, making them impossible to replace by the user, whereas the batteries of external sensors can be replaced by the user. It is important to note that the battery life of the sensors is determined by the monitoring interval, tire anomalies, and driving duration.