Additional Details ------------------------------ Product description: The DigiFlow 6000R can monitor the volume flow of up to five filters. Users can program the volume for each filter. The DigiFlow 6000R will count up from zero until the total amount is reached. A quick key press can easily check out the remaining flow volume of each filter. When any filter's individual flow volume is reached, it will generate an audible alert and flash the filter number on screen. Two AAA alkaline batteries last for more more than two years. The status is automatically memorized when the power is lost It is designed mainly for residential and industrial water treatment applications. Capacity Counters: up to 5 Flow Rate Reading: 0.3 - 3.5 gpm Filter Capacity Range: 100 - 19900 gallons Timing Setting Range: No Accuracy: +/- 5% Port: 3/8" NPT Sensor Body: POM O-Ring: E.P. Working Temperature: 40 - 100?F Working Pressure: 8 - 100 psi Unit: Gallon Power: 2 x AAA battery End of Capacity Buzzer Alert: Yes Dimension: 74 (w) x 70 (h) x 52 (t) mm Weight: 170g