Ideal for use with cannon or ubbelohde glass capillary viscometer let you determine viscosities using ASTM testing method. Conforms to ASTM D-455 and related specifications Main Specifications ?Temp. Range : ambient +5? ~99? ?Controller : Digital PID Control ?Accuracy : ± 0.1? ?Uniformity : ± 0.2? ?Heating Type : Direct Heating with circulation ?Capacity : 30 Liters High precision Temp. Control Immersed incoloy heater with magnetic driven pump circulates water to keep uniform temperature UP to Max. 99?, ± 0.1? accuracy, ± 0.2? uniformity Digital PID Controller enables 0.1? resolution Over Temperature Protection, Alarm, Timer, Auto-tuning, in-built temperature calibration function Convenience & safety Stainless steel 304 bath with large viewing window to measure viscosity easily Perforated stainless steel heater cover protects heater and sensor from damage Hydraulic over temperature cut-off and CG-fuse for safety Stainless steel lid for each viscosity hole