(only in conjunction with printer or visualization) Measuring the core temperature of the wood is a prerequisite for treating packaging wood in accordance with ISPM No. 15. The core temperature of the wood is measured using two sensors (optionally also wireless) and processed in the control system. If the core temperature has exceeded 56°C for 30 minutes, the control system automatically ends the heat treatment and the packaging wood can be released in accordance with ISPM No. 15.