Check serviceability at your Pincode:
Shipping charge applicable as per serviceability
High-precision, location-independent and integrated differential pressure sensor
Measure all IAQ-related parameters – with our wide range of probes for all IAQ measurements
Document measuring values directly on the customer's site and send them by e-mail, or further analyze them using the testo DataControl PC software
The testo 400 is the universal measuring instrument for all IAQ professionals. Measure, analyze and document all IAQ and comfort level parameters using just one instrument – simply, conveniently and in compliance with the standards. High-quality measuring technology, intuitive measurement assistants, versatile documentation options and a comprehensive selection of IAQ probes make the testo 400 the perfect partner for your day-to-day work.