Type:GPR-1900 measure range:0-10ppm 0-100ppm 0-1000ppm 0-25% Precision:< 1% (full scale) 15.Organic solvent adsorption device:Installed in the end of box,with the main circulation piping in parallel, first adsorb organic solvent 16.Control system:Siemens PLC control system, touch screen operation 18.Control position:Right side