Precision’s Incubator is designed specifically for Biological Oxygen Demand (BOD) determinations, but can be used for any application that requires a temperature setting at or below the ambient temperature of the laboratory. The unit is microprocessor controlled and features push button temperature set-point selection, high and low temperature protection and an easy to read digital display. Calibrations can be performed on the front panel using a simple procedure. The unit includes jacks for connecting an external chart recorder and an RS232 interface option for data logging. This model comes equipped with six interior shelves and six shelves in the door. 115V. Chamber volume: 20 cu. ft. Convection Mechanical, Temp. Control Microprocessor, Temp. Display Digital, Temp. Range: -10 to +50C, Chamber (LxWxH”) 20 x 26.5 x 57. Maximum shelves: 6. Shipping weight: 315lb. 115V. Precision #: 3721.