Detector for diameter tube from 13 to 300mm (Model FSSD) belonging to the Portaflow-C portable type ultrasonic flow meter. This model is suitable for measuring fluid temperatures from -40 to +100℃. A guide rail is provided (Length = 320mm, ≤ Ø100mm). A long rail is optional on request (Length = 540mm, ≤ Ø300mm). Tag plate available on request. Other models available (FSSC 50 to 1200mm, FSSE 200 to 6000mm, FSSH 50 to 400mm). Different variations of model FSSD (detector for diameter tube from 13 to 300mm) available on request.