Heratherm® Advanced Protocol Security incubators feature adjustable forced convection which allows the user to select the fan speed from 0 up to 100%. Air speed can be adjusted to give optimum airflow depending on the application. These units are recommended for a wide range of demanding laboratory applications as well as food and beverage and pharmaceutical stability testing. The incubators have a smooth stainless steel inner chamber with easy to clean, rounded corners. Units feature an internal glass door, allowing samples to be viewed without impacting on temperature stability, a lockable outer door restricts access. Units can be stacked on top of each other to save space, no tools or stacking devices are required. Due to decontamination cycle at 140 °C, contaminating microorganisms are reduced to a minimum, which is comparable to sterilisation within a six hour cycle. No need for separate autoclaving of interior fittings. Sample safety is enhanced with automatic over- and under-temperature alarm to protect samples and incubator. The advanced digital timer can turn the unit off at a specific time - can be used to interrupt cell growth at a specified time: Choose from real time or hour settings. Unit is switched on and off at specified time - no wasted energy when unit is not in use. Units have a connection for optional sample sensor which measures exact sample temperature and this is shown separately on display.