21.3 Ohm => 675 W @ 120 V Built-in thermocouple type J. This type of thermocouple is rated to operate between 32 to 1382 F. actual temp range of this hot plate has not been determine. Flat Aluminum Heating Surface. 12 x 6 Surface with cover / Lid. Needs a variable power source or a temperature controller or it will overheat. A Variac, or a motor controller, (for > 6 A) will do.
Tested: and found to be in good working condition.