Quantity   Component name
1 × Reflowduino The Reflowduino Pro comes with a solid-state relay already mounted and ready to go. The Reflowduino Basic doesn't have the relay so you would have to select your own relay or use the Solid-State Sidekick as the most simple method! You can also use the Reflowduino32 along with an ESP32 dev board instead of the Reflowduino.
1 × Toaster Oven OR Hot Plate I personally used a cheap $20 toaster oven from Walmart, and it worked great! You could also use a hot plate, but please note that these may not be as good as toaster ovens for reflow, at least without doing some testing and software tweaks first!
1 × Solid-State Sidekick Relay Module The Solid-State Sidekick is a single solid-state relay module that allows you to simply plug in the appliance you need to control as well as the two relay control wires from the Reflowduino via a screw terminal, and you're all set! This is by far the easiest and safest method.
1 × "DOIT" ESP32 Dev Board You can find it here: https://www.amazon.com/Docreate-Development-Bluetooth-Ultra-Low-Consumption/dp/B0754DT83W/ref=sr_1_3?ie=UTF8&qid=1521924528&sr=8-3&keywords=esp32
1 × Reflowduino32 Add-On Module The Reflowduino32 plugs into the ESP32 dev board and gives it thermocouple and relay interface via two screw terminals for easy connection.