Parents greatly value kids' learning and health. But heavy homework often has kids studying long hours, and they may not notice a fever, harming their health. This smart health - monitoring pen solves the problem. With a thermal sensor, when a child runs a fever while using it, the heat turns the black ink red as a warning. Its advantages are clear: 1. Real - time study - time monitoring; 2. Intuitive color - change reminder. Spotting a fever early helps with quick medical care.
