​Zonzen's main products are thermocouples,  RTD's, thermocouple wires, RTD cables, MI Cables, thermocouple connectors, thermocouple heads, and digital thermometers. They are used in various industries for measuring temperature. They play a role in various fields such as petrochemistry, electri power, gases, ships, fibers, semiconductors, foods, chemicals, aerospace, and automobiles.