The electronic microprocessor mod. F 130 are easily matched to the flow meter series KDN and allow the aggregation of totalisation and predetermination of all fluids up to 40,000 cps. They can be powered trhough 24 Vdc (to be used by apposite special power supply) or by lithium batteries 3.6 V. They are mounted directly on the pipe wall using brackets, directly on the flow meter. Running ATEX certified can be used in hazardous areas. Used to realize practical filling stations drums, also trailerable, thus replacing the traditional scales.