We at DHE Heaters Pvt. Ltd. produce the top of the line temperature sensing devices also known as Thermocouples. A thermocouple is a sensor for measuring temperature. It consists of two dissimilar metals, joined together at one end. When the junction of the two metals is heated or cooled a voltage is produced that can interpreted by a temperature controller, high limit or display device. https://dheheaters.com/industrial-heaters/thermocouple/