The TLD annealing oven is controlled by a programmable microprocessor and has been specially developed for thermoluminescent dosimetry. TLD elements like chips, discs and rods can be annealed on stainless steel trays. Two predefined programs are used for the annealing of TLDs before irradiation and for preheating after irradiation and before reading by a TLD reader. The optional THELDO software makes it possible to program any temperature profile based on both basic temperature cycles (max. 400°C).