The testo 440 combines a compact handheld measuring instrument with intuitive measurement menus and a comprehensive selection of air velocity and IAQ probes. Use it to keep all your air conditioning and ventilation needs safely and reliably under control.
Featuring a large display with intuitive measurement menus and offering the convenience of wireless communication and reduce the clutter with one handle for all probes.
This is the cost-effective option you’ve been looking for. A one-time investment with long-term benefits.