Digital flow meter to connect to smart memo. Measurement data are automatically transferred and used, for example, for the pressure drop test according to German DVGW guideline W 400-2. Can be used for the following drain volumes in water pressure tests (e.g. W 400-2/W 101/EN 805): min. 32 ml max. 84 litres Sensor type: flow meter Measuring range: 1-42l/min. Accuracy: 5% of MW. Operating temperature: 0°C to +70 °C Max. pressure: 25 bar Connection: inlet nipple series 5020, outlet Geka coupling Instructions for use: For proper measurement results, the sensor must be rinsed with water before the test is carried out! During water pressure tests with an expected drain volumes < 500 ml a flow reducer (article number 402125) should be used!