See what’s inside a Toaster Oven.
I took the toaster oven apart to modify it because there was no temperature control functions on this cheap toaster oven.
But that cheap thermostat knob I bough was no good, It was not accurate at all for the temperatures!
I then drilled a hole for my thermocouple temperature probe that works with my kiln temperature controller to control the oven temperature. (Good for powder coating small parts, NOT FOR COOKING FOOD)
I left the LED I added, This shows when the power is applied to the heating elements.