Features: 1. External material: excellent cold-rolled steel with static coating. 2. Stainless steel inner chamber; 3. PID micro-computer intelligent temperature controller,over-temperature protection; LED display; 4. Double-layer glass observation window, adjustable airtight buckle lock. 5. No blowing, natural convection heating circulation. BOVV Functional Type: 1. LCD digital screen 2. Independent temperature limit system; auto break off when over temperature limit, and auto power switch to maintain safe experiment.