Accuracy:Thermistortemperaturesensor:&plu***n;0.22°C@25°C(&plu***n;0.4°F@77°F);RTDtemperaturesensor:DINclassB:&plu***n;0.3°C@0°C(&plu***n;0.54°F@32°F).OperatingTemperature:-40to250°F.ProbeDiameter:0.235˝(5.97mm).ProbeLength:3.5˝.ProbeMaterial:304SS.Mounting:Suspensionorsurface.EnclosureRating:NEMA4X(IP66).Weight:3oz(85g).O-4AO-4BO-4CO-4DO-4EO-4F)