High precision: intuitive clear reading, high reliability, measurement accuracy 1 percent . Digital LCD Display: High resolution displays show both current and cumulative flow. Modular Design: The modular design makes it suitable for use with output modules, sensors and remote transmitters. Easy to use: easy to replace internal compnts, easy maintenance. Compact and lightweight design, easy to install. Wide use: can be widely used to measure diesel, kerosene, gasoline, etc. Product description Color: Red LLW-25. Malfunction and solution: The flow meter is not accurate. 1. The calibration method is not correct. Calibration. 2. The gauge flow rate is less than the lowest level. Increase the flow. 3. The flowmeter is blocked by dry liquid. Take out the wheel and clean it thoroughly and make sure the wheel spins freely. 4. The impeller is wrapped in sealing material. Remove the dipstick and make sure the wheel spins freely. 5. Too close to the exercise wheel Install correctly. 6. Close to the sound environment of the engine or electronics. Install correctly. The flow is normal, but the meter cannot count. Press the DISPLAY button, the counter starts. 1. Field calibration is not correct. Calibration. 2. The wheel is stuck or damaged. Remove the dipstick and make sure the wheel spins freely. 3. The impeller is wrapped in sealing material. Remove the dipstick and make sure the wheel spins freely. Features: Operating voltage: 2.3-3.3 V. Battery type: 2 x AAA LRO3 batteries. Thread size: 1 " NPT. Repetition: 0.5 percent . Measurement accuracy: 1 percent . Maximum operating pressure: 20 bar. Flow rate: 15-120 l or min. Unit account: 0.00-999.9. Cumulative total number: 0-9999. Errors count: 0.1000-9.9999. Operating temperature: -10 C - and 60 C. Standby time: 1 year. Application: diesel, kerosene, gasoline. Color: red, blue (optional). Weight: 371 g. Content: 1 x turbine flowmeter ", Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement.