Voltage:110V 60HZ,Input Power:1400W Stainless steel working chamber. Air convection oven made of high-quality cold-rolled steel with electrostatic spray on surfaceEasy-to-clean and heavy-duty electropolished vacuum chamber, Rectangular chamber, ensuring maximum sufficient volume Vacuum drying oven uses microcomputer temperature controller, High-performance MCU-based temperature controller with advanced PID algorithm to maintain temperature uniformity (+/- 1 °F) from low temperature to 480 °F (ca. 249 °C). Large LCD screen display, able to show multi-group data. The menu-style user interface, easy to understand and operate.Force adjustable door handle and one-piece door sealing gasket maintain consistent vacuum level Uniform Heating: Suitable for drying, heating, and reheating. Natural convection-driven air circulation, combined with a separate fan switch, ensures faster and more even drying of materials. Note: Please first exhaust the air in the oven before heating. When the power off,