Features This oil gun nozzle can be used to measure the flow of pipeline fluid. It is a great oil filling system for factories, petrol stations, etc. Well designed gun nozzle is resistant to oil drops or leakage, small size, accurate measurement, easy operation. It offers four units litres, gallons, pints and quarts. For filling liquids such as diesel, kerosene, petrol, Specifications: Model: AC-15A. Material: aluminium. Nozzle size: 1 inch (25 mm). Flow rate: 4.5 m³/h Pressure: 0.25 MPa. Suitable liquid: diesel, kerosene, petrol. Weight: 1415g (approx.) Instructions: 1. Two buttons; (calibrate) and (display). 2. When changing the unit, press and hold the button (CALIBRATE) for 5 seconds, the numbers on the display flash from left to right; press (DISPLAY) to reach the last position, the unit flashes from top to bottom, and then press (CALIBRATE) to select the unit. 3. Standby state: standby state is a low power state, when there is a measurement pulse input, filling quantities are displayed in real time. 4. The measuring range is 9999.9, if this range is exceeded, it will automatically reset to 0. 5. Reset the capacity in real time: press the (DISPLAY) button to reset the real time quantity to 0. Reset the cumulative quantity: take out the battery, and when you put the battery back in, press and hold (display) to reset the cumulative amount. 6. The standard unit of real-time measurement is litres (LRT). 7. In standby state or when the filling quantity is displayed in real time, press (CALIBRATE) to display the cumulative capacity. 8. Release the button (CALIBRATE) or if there is a measurement pulse input, it returns to the display of the real-time filling quantity. Package includes: 1 x oil gun nozzle. 1 x connector. Note: Please note that the new type and old type of this product are sent at random, and make sure you do not mind before ordering. Package List