| Model | 
                   3948                   
                    | 3907                   
                 | 
                 
                    | Thermo Cat. No. | 
                 3948
                  | 3907 | 
                 
                   | Capacity
                    | 821 L | 
                   311 L | 
                 
                 
                   | Controller                                         | Control
                    | Watlow Microprocessor - PID, with RTD sensor | 
                 
                 
                   | Display
                    | Digital dual LED | 
                 
                 
                   | Temp. Resolution
                    | 0.1¡É | 
                 
                 
                
                   | Programmability                                      
                    | Single setpoint, ramp & soak (to 40 steps) | 
                
                
                   | Compressor                     
                    | 1⁄4 HP, air-cooled | 
                
                
                  | Refrigerant                                                      
                   | Non-CFC, R134A refrigerant; 0.382kg; GWP:1420; CO2e: 0.54t | 
                
                
                  | Temperature                                                        
                    | Range
                    | 0¡É to +60¡É | 
                
                 
                   | Stability at 20 ~ 37¡É
                     
                    | ¡Â ¡¾0.1¡É | 
                 
                 
                   | Uniformity at 20 ~ 37¡É
                    | ¡Â ¡¾0.3¡É | 
                 
                 
                   | Humidity                      | Range
                    | Above ambient to 95% @37¡ÆC ¡¾5.0% RH | 
                 
                 
                   | Water Connection
                    | Fill port : 1⁄8¡± female NPT, Drain port : 3⁄8¡± FPT & 3⁄8¡± O.D. P-trap right rear, Intial Fill approx. 1L / 1qt. | 
                 
              
                
                   | Size
                     
                    | Interior
                    | w787¡¿d686¡¿h1524 mm | 
                   w787¡¿d686¡¿h609 mm | 
                
                 
                   | Exterior
                    | w965¡¿d813¡¿h2248 mm | 
                   w965¡¿d813¡¿h1308 mm | 
                 
                 
                   | Material
                    | Interior
                    | Solid, Stainless Steel | 
                 
                 
                   | Exterior
                    | Powder Coated Steel | 
                 
                 
                   Electric 
                   Supply                      | Power
                    | 230V, 50/60Hz, 15.0 Amps | 
                 
                 
                   | Plug | CEE 16 A, 6 h | 
                
                 
                   | Weight                   
                    | 347 kg | 
                   261 kg | 
                 
                 
                   | Access Port
                    | ¨ª54 mm | 
                 
                 
                   | Shelf                                                       
                    | Material
                    | Solid stainless steel, reinforced | 
                 
              
               
                
                  | Size
                   | w778¡¿d656 mm | 
                
                
                  | Standard / Max.
                   | 6ea / 19ea | 
                  3ea / 11ea | 
                
                
                  | Safety                                                                        
                   | Audible / Visual alarm in case of deviation from setpoint |