Features: 1. has a large chamber ( 9.5" d x 8.6" H) and it is designed for sintering ceramic parts and component in Lab and Hobby Shop. 2. has a unique ceramic fiber insulation around the chamber to provide excellent uniformity and energy efficiency. 3. The heating element is embedded in the insulation for maximum heat transfer to the chamber. Max. temperature can reach 1250 . 4. Power control with 30 segments programmable. 5. All accessories are included for immediate use, 1) One piece of refractory disk, which can be put on bottom of furnace to protect furnace liner from wearing out. 2) Three pieces of refractory supports, which can be put on top of the disk and bottom of the crucible to adjusting crucible height. 3) One high temperature gloves using can be used < 900 . Descriptions Chamber Size ( DxH) 240x220mm ( 9.5" x8.6" ) Working Temperature 100-1250 Temperature Control 30 steps programmable and PID automatic control Temperature Rise Time 1.