With this analog controller you can regulate the temperature indirect about the tension. The regulation is stepless (scala with 12 steps for information).
An exactly regulation of the temperature is not possible.
Secure the plastic housing of your devices with a branding iron. A computer or montior are provided with your logo or name. Burning marks can not be removed, in contrast to other methods.
The marking can be made with the same instrument, with which you burn wood. In addition, however, you should make a temperature control with a temperature regulator, as the temperature for the marking of plastics may not be as high as when burning wood.
This device is switched just before the heater.