Just like tires, all TPMS service kits should be stored in the dark and as cool as possible to maintain their technical properties over a long period of time. Each component has been specified, manufactured and tested by HOFMANN POWER WEIGHT according to strict OE requirements for temperature, corrosion and aging resistance. Thus, the storage period recommended by HOFMANN POWER WEIGHT complies with OE specifications. This is usually 2 years and depends on the storage conditions.