Ophir power meters work on the smart plug principle. This means that almost any Ophir power meter can work – plug and play – with almost any of the wide range of Ophir sensors. Ophir power meters are also the most precisely calibrated units on the market thus measuring with the highest accuracy. As for ease of use, Ophir meters have the most user friendly easy to understand interface. The meters also come with a versatile and easy to use software for use either stand alone or interfaced with LabVIEW or the users's own software.