Ever wonder how labs weld their custom thermocouple probes? Here's a short video of the TL-WELD9 Bel Thermocouple Welder in action. This tool is suitable for welding Type K/J/E/T/N/R/S/B thermocouple wire of 19AWG to 40AWG (0.1mm diameter to 1.1mm diameter). The device uses a 60 joule capacitor, with charging time pegged at 3seconds between welds, yielding a rate of about 5-10 welds per minute. Weighs 11lbs, runs on 120V/140V and comes with an spare carbon anode. Manufacturer is Wilbows International out of Hong Kong. More info here and via Testerstore.net where you can purchase the unit for $1080 USD.