The DARCY tubes are made of stainless steel and comply with the standard UNI EN ISO 16911-1. They come complete with thermocouple “K” for measuring temperature, have a diameter of 25 mm and are available in the following lengths: 500 – 1000 – 1500 – 2000 mm (other sizes available on request). They can be used as “stand alone” devices to calculate the velocity and the flow rate in a flue connecting them to a simple micromanometer (ISOCHECK LT) or with a sampling probe to make automatic isokinetic sampling (ISOCHECK series processors connected to the sampler of the series LIFETEK).