TSS Technology for its Microperflex unit, designed for the accurate measurement of the combined area of the laser micro holes (around 50/60 microns each). High tech flexible packaging companies, using this technology, need to know the exact total area of the of the perforations to enable the rate of release of the gas to be calculated, so it can gauge how long an item will stay fresh. It has a life expectancy of over 5 years and costs around 57 pence per hour, calculated on a 40-hour week.