Easy Installation: Designed for easy installation and seamless integration, this advanced digital water flow meter enhances your water purification system. Maintains Water Purifier Efficiency: Helps track usage time and signals when it's time to change the filter with a programmable flow alarm that provides an audible prompt, making maintenance proactive and simple. Smart Power Saving: Features a smart power saving function that automatically shuts off when not in use to conserve energy. Accurate Measurement: Capable of measuring flow rates from 0.8 to 8.0 liters per minute (LPM) and 0.2 to 2.1 gallons per minute (GPM), offering precision and versatility in monitoring water usage. Compact and Durable Design: Rugged construction ensures long-lasting reliability and performance, improving the overall efficiency of your water filtration system. Joint Pipe Bore Size: 1/4 inch Coupling Type: Join Measurement Range: 0-99999 Liters/Gallons Model Number: Flow Monitor Application: Plumbing Accuracy: 10% Battery: 2 x 1.5V batteries (not included) Color: White Material: ABS Size: 9 x 6.6 x 6.3 cm Package Contents: 1 x Flow detector 1 x English instruction manual Note: Light reflection and different displays may cause the color of the item in the picture to vary slightly from the real thing. Measurement may vary by +/- 1-3 cm.