They are ideal for high-voltage applications, strong magnetic fields, and demanding industrial settings, ensuring precise temperature measurements to protect critical equipment. Fiber-optic high-temperature sensors are gradually replacing traditional electronic sensors due to their small size, resistance to electromagnetic. Our fiber optic sensors use a Gallium Arsenide (GaAs) crystal at the fiber tip, making them ideal for highly accurate temperature measurements in environments exposed to microwave radiation and high-frequency interference. As a leading OEM/ODM factory, wholesale supplier, and bulk. High accuracy and repeatable optical temperature sensors for your needs.