With the new testo Smart Probes, measurement is more mobile than ever before. The compact measuring instruments can be operated wirelessly with your smartphone or tablet, and conveniently transported in the handy testo Smart Case. That way, you always have all your measurement technology with you and

immediately ready at hand. All measurement data is transmitted by Bluetooth directly to the free Smart App, and with a mobile device, data can be read, turned into a report, or sent directly by e-mail. Additionally, the App can do much more:

with practical measurement menus and special functions, it turns your smartphone into a measurement data center – and makes your work more efficient. Welcome to the world of digital measurement technology.

The Testo 557s digital manifold with a 4-way valve block allows fast measurements on refrigeration, air conditioning systems, and heat pumps. It includes the Testo 552i Smart Probe for vacuum measurement and features a large display for result evaluation. Stored programs simplify measurements and automatically determine various system parameters. Bluetooth probes for temperature, vacuum, and humidity offer maximum flexibility. With the Testo Smart App, digital documentation can be handled on-site. Its proven quality and durability ensure consistent high performance in all conditions.

The Testo 440 air velocity and IAQ meter offers compact handheld design with intuitive menus and a variety of air velocity and IAQ probes for precise control over air conditioning and ventilation systems. It connects to digital probes and Testo Smart Probes, streamlining measurement tasks with structured menus for volume flow, cooling/heating load, turbulence, and more. Reports can be exported via USB or printed directly on site. Available in standard and dP models, the dP version includes a built-in differential pressure sensor for additional measurements.

Light, precise and convenient: the testo 420 Volume Flow Hood significantly facilitates volume flow measurement at larger air intakes and vents. At only 6.4 lbs, it is the lightest volume flow hood on the market. With the integrated flow straightener, the testo 420 sets new measurement precision standards at swirl outlets.

The compact Testo 417 4-inch vane anemometer ensures precise measurements for air conditioning and ventilation systems. It automatically calculates time and point average values, as well as volume flow, displaying them on the instrument’s screen. This allows for efficient adjustment of balanced ventilation systems, with quick documentation using the Testo Smart App. The app supports instrument configuration, display, storage, and documentation of measured values, and turns your smartphone into a second display. The Testo 417 is available in two kits: Kit 1 includes two measuring funnels for various outlet sizes, while Kit 2 also includes a volume flow straightener for precise measurements at swirl diffusers.

The new universal air flow and IAQ measuring instrument testo 400 and its broad selection of precision probes were developed with just one objective in mind: To make all measurement tasks in the ventilation and air conditioning sector easier and less complicated than ever before. With the testo 400, you can now carry out worksteps which were previously only possible with a PC and software – directly on site with just one measuring instrument!