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The NTC SENSOR in the hair dryer and its differences and technologies

The core differences among the three types of temperature sensors
1. Basic Protection Type (Suitable for most traditional hair dryers)
Main technical/sensor types: NTC thermistor, temperature control fuse
Core functions and purposes: Prevent overheating of the body or the outlet, ensuring basic safety.
Temperature measurement objects: Internal heating elements or air from the outlet.
Features: Low cost, basic safety feature.
2. Precise Temperature Control Type (for mid-range/advanced hair dryers)
Main technical/sensor types: Glass bead temperature and humidity sensor, dual NTC sensors
Core functions and purposes: Maintain a constant airflow temperature, enhance the comfort of drying hair.
Temperature measurement targets: Outflow temperature, or simultaneously monitor outflow temperature and ambient temperature.
Features: Achieve multi-level constant temperature blowing, providing a better experience.
3. Hair Temperature Tracking Type (for high-end/ flagship products)
Main Technologies/Sensor Types: Infrared temperature sensor, multi-sensor fusion module
Core Functions and Purposes: Directly monitor hair temperature and dynamically adjust air temperature to achieve intelligent hair care.
Temperature Measurement Object: Surface temperature of the hair.
Features: Cutting-edge technology, can prevent hair heat damage, and has high dry hair efficiency.
Key Functions and Technological Trends
Regardless of the type of sensor, the core function is to strike a balance between dry hair efficiency and prevention of heat damage.
Preventing overheating damage: When hair is exposed to temperatures above 60℃ for a long time, the proteins will denature, causing damage to the hair scales and making the hair dry and prone to breakage.
Enhancing dry hair efficiency: Intelligent hair dryers (such as Tanque Mowman 2.0) can quickly dry the hair in the initial stage using a higher temperature (still below 60℃), and then reduce the temperature to enter the hair care stage later.
The future technological trend is the deep integration of “sensors + algorithms”. For instance, existing solutions have integrated infrared temperature-sensing sensors andToF ranging sensors into a single module. This not only enables real-time monitoring of hair temperature but also allows for sensing the distance between a hair dryer and the hair. Through algorithms, it achieves more precise “dynamic following” style hair-drying.


Post time: Dec-30-2025