Based on the principle of thermal dispersion or hot wire, they enable the measurement of the speed of the air in ventilation ducts, HVAC systems or other indoor measurements.
We can measure small speeds with high accuracy.
They have an amplified analogic output of 4/20 mAdc, 0/10 Vdc, 0/5 Vdc, etc.
We have diverse versions from the low-cost made of plastic for undemanding applications to high resistant models.