Speed range[rpm] 100-1600; Speed display lcd ; Speed display accuracy[rpm] 1 ; Material stainless steel ; Dimension of plate[mm] ¦õ135; Heating power[w] 500; Heat rate£¨1lwater£©[k/min]6; Heating temperature range[¡æ] rt-350; Temperature display lcd; Temperature display accuracy[¡æ] 0.1; Control accuracy of heating temperature[¡æ]1; Adjustable safety circuit(heating plate)[¡æ] 100-350 ; Temperature sensor of extra position pt100; Control accuracy of heating temperature with temperature sensor[¡æ] 0.2; Dimension[mm] 300¡á170¡á100; Weight[kg] 2.8; Permissible ambient temperature[¡æ] 5-40; Permissible ambient humidity 80%; Protection class acc. To din en60529 ip42; Time range:ceramic surfaceith t shows having time control function, 0-9999 minutes is adjustable. Rs232 interface yes; Dimension[mm] 300¡á170¡á100; Weight[kg] 2.8;