The temperature scanner HL Scan monitors the temperature of the workpiece using an LED beam. If the permissible temperature is exceeded or not reached, an acoustic and visual signal will alert the user. It is suitable for the devices HL 1920 E, HL 2020 E, as well as the professional devices HG 2120 E and HG 2320 E, which are used for processing temperature-sensitive materials. The HL Scan measures the surface temperature of the workpiece during processing with the hot air blower. As soon as the ideal temperature is either exceeded or not reached, a signal sounds. Additionally, the display indicates whether the workpiece surface is too hot or too cold. Red means "too hot," green means "ideal temperature," and blue means "too cold." The HL Scan can be attached to the hot air blowers HL 1920 E, 2020 E, HG 2120 E, and HG 2320 E. The tolerance range for the warning can be individually adjusted. The visual and acoustic warning can be disabled if necessary.