The systems analysis of the product's predecessor led to ideas for new solutions and provided the basis for a rough estimate of manufacturing costs. In the system design phase, Zühlke carefully considered topics like communication options, energy consumption and intelligent data protection mechanisms.
Alarm limits are programmable according to customer specifications. The break-off tab clearly indicates that the device has been activated. Temperature and time information of all events can be displayed on the LCD screen or read out via USB as digitally signed PDFs. No specific software is required. The housing can only be opened by destroying it, and the signed data can easily be checked for tampering. With this combination of measures Zühlke achieved the necessary security: WHO and UNICEF have endorsed the product for the global transport of pharmaceuticals.