Jeio Tech ON4-03V Natural Convection (Gravity) Oven is engineered for gentle, reliable thermal processing with uniform temperature distribution, ideal for drying heat-sensitive materials, powders, and glassware without airflow disturbance. Utilizing natural gravity convection, the PID control system delivers excellent stability (±0.4°C fluctuation) and uniformity (±2.8°C variation) across a temperature range of Amb.+15°C to 250°C. The advanced model offers enhanced functionality such as programmable temperature ramping, a real-time graphical display, and RS-232/USB communication ports for data logging and external control. With PID temperature control, a durable corrosion-resistant chamber, and a user-friendly interface, the ON4 series delivers dependable performance for precise, disturbance-free heating applications. Inner chamber: W 10.75 x D 10.63 x H 13.78 inches.