The WST-02 is a high temperature Type K ribbon thermocouple with stainless steel support strap, solder bead and glass filled teflon body (housing) for use with the Wahl ST2200 Soldering Iron Tester.

Measures tip temperature of most small (<1/8 inch) conical, chisel, and screwdriver type soldering tips.

Heavy duty sensor. Small to medium tips 0.2 gram mass.