Trebuchet03 writes – “A thermocouple is a device used to measure temperature by utilizing the Seebeck effect. This instructable will show a very simple method of making a thermocouple so you can precisely measure the internal temperature of your thanksgiving turkey. If I can – I’ll build my own bridge and make my own meat thermometer probe. Why? you ask. Why not? What’s cooler than measuring the temperature of your turkey with your trusty multimeter. And in my case, my trusty cheapo multimeter and calculator” – Link.