10 mm steel plates welded together for extra strength. 106 x 80 x 26mm Machined CNC Aluminium pressure plates. Replaceable thermocouples. Solid state Relay PID Controller; Supply voltage AC 110 ~240v 50/60Hz Power Consumption = 5Va (100 ~240VAC) Control Range: -50~1300℃ Accuracy of 0.1 degree C PID and ON/OFF Control