YYT255 Sweating Guarded Hotplate ndi yoyenera mitundu yosiyanasiyana ya nsalu, kuphatikizapo nsalu zamafakitale, nsalu zosalukidwa ndi zipangizo zina zosiyanasiyana zosalala.
Ichi ndi chida chomwe chimagwiritsidwa ntchito poyesa kukana kutentha (Rct) ndi kukana chinyezi (Ret) kwa nsalu (ndi zina) zinthu zosalala. Chida ichi chimagwiritsidwa ntchito kukwaniritsa miyezo ya ISO 11092, ASTM F 1868 ndi GB/T11048-2008.