Testo 400 Universal IAQ instrument HR185WM_SPARES The 28-watt full LED panel

The 28-watt full LED panel guarantees uniform and well-calibrated light diffusion on the work surface and in the surrounding area

it offers versatile illumination

Super tough aluminium and polycarbonate construction

Because the front design cover can easily be removed

black or stainless steel finishes

Testo 400 Universal IAQ instrument HR185WM_SPARES The 28-watt full LED panelThe testo 400 is a highly advanced, universal IAQ instrument designed to support professionals in the fields of air conditioning, ventilation, and environmental monitoring. It allows users to measure, analyse, and document all IAQ and comfort parameters using a single, intuitive device. Whether you're working on air flow measurements, temperature and humidity levels, or assessing air quality, the testo 400 offers the versatility and accuracy required