Slide Warming Tray W530 X D250 X H50mmWarming Tray The warming tray has many uses including slide drying, warming small containers, etc. Accurate temperatures are maintained to within 25mm of the edge of the plate. Temperature control is proportional, the element indicator will glow until a few degrees before the set temperature is reached. At this point the indicator will begin to alternate on and off, signifying that proportional control is in operation. The indicator will remain mostly