Figure 1: Schematic view of the device: (a) expanded view, (b) compact view. 1: Peltier elements (heating/cooling elements), 2: Haustorial fans, 3: Heat sink, 4: Blowing fan, 5: Metallic plate for thermal conduction, 6: Thermoregulator of instruments, 7: Specialized matrix for instruments, 8: Temperature sensor, 9: Electronic control board, 10: LCD, 11: Wires, 12: Glass slab, 13: Holding clips for slab, 14: Control keys, 15: Air balcony, 16: Main frame