Digital anemometer with backlit screen with which the air speed and temperature can be measured, as well as the volumetric air flow. The measured values can be directly saved in the appliance and later transmitted to a computer to be evaluated. Automatic disconnection over 10 minutes. Low battery warning on the screen. This apparatus is essential for the technicians of aeration systems to carry out the adjustment and control of the ventilation systems. It is supplied with transport bag, USB cable and software. According to the EN61326: 2006, EN55022: 1998 + A1 + A2 and EN55024: 1998 + A1 + A2.