The Plug-in Mains Adapter is a reliable power source designed for use with Testo measurement equipment and accessories that require 5 VDC / 500 mA input.

With its wide input voltage range of 100–250 VAC and frequency of 50–60 Hz, this adapter is ideal for both domestic and international applications. It comes equipped with a European plug, making it ready to use across most EU countries.

This compact adapter ensures stable and consistent power delivery, reducing reliance on batteries and providing uninterrupted operation during extended measurement sessions. Whether you're working in the lab, office, or field, this adapter is a dependable solution for powering your instruments.