The Tullgren funnel is a very useful tool for the extraction of living organisms from soil samples. Includes thick and fine mesh, glass collection cup and 3-core cable. The meshes have a diameter of 2 mm, 4 mm and 6 mm.
Operating mode: a soil sample is placed on the perforated plate. A 12V, 50W heating lamp is kept above the ground, immersing the organisms through the funnel in a collection flask.
Suitable for use in school and university context. Supplied without universal support.