The SFT-1/TR electrode dryer is made by Sherman, the brand speaks for itself, it's quality and reliability is well known among welding specialists.
 
It is used for proper storage of electrodes/welding rods. Due to the lightweight construction it is recommended for less intensive use. Dryer is equipped in a thermostat that turns off the heater when it reaches appropriate temperature, and switches off a light visible on a front panel.
 
More technical information can be found on the right hand side