The TLC Plate Heater 3 is a device for heating TLC/HPTLC plates, permitting the optimal heating during the derivatization reaction. It features a NEXTREMA® heating surface which is resistant to all common reagents and is easily cleaned. The 20 x 20 cm heating surface has a grid to facilitate correct positioning of the plate. Programmed and actual temperature are digitally displayed. The temperature is selectable between 25 and 200 °C. The plate heater is protected from overheating.