Where’s your smartphone right now? In your hand? In your trouser pocket? It can’t be far away, because for most of us, the smartphone has become a constant companion. It’s always close to hand, and with the right Apps and functions, it makes day-to-day life easier. Whether we’re writing a quick e-mail, taking a selfie or checking our news App. Which is why is only logical to use the smartphone for work. Because at work too, intuitive handling and automatic data transfer save time, nerves, and in the end, money. For this reason, Testo combines proven measurement technology with the digital world you are already at home in.