FS ADAPTER BLOCK is use in case when it is necessary to monitor the media flow in the pipe with a smaller DN than DN 25 (or the flow velocity is below the sensor range at the pipe diameter given), it is possible to use an adapter block with a corresponding flow velocity and ensure correct operation and keep the installation conditions in this way. The adapters are designed for a short version of the 65 mm sensor by using a direct neck with G1/2” pipe thread.