The Weller EC1302B series tools feature stainless steel heater construction, a non-burning silicone rubber cord and a large selection of iron plated copper tips in various styles. The handle design is lightweight, high impact plastic, with controlled thermal conductivity to allow continuous use without discomfort from heat or fatigue. The heating element is a fast response, long life, nichrome wound unit encased in stainless steel to eliminate corrosion at high temperature. - The Weller EC1302B tools are interchangeable without recalibration of the soldering station. This is made possible by the use of a high precision platinum temperature sensor, which is positioned deep inside the tip to insure rapid response to soldering load variations.