Optimal Water Management: precise water flow control in your irrigation systems with the ZJ-LCD-M Digital Water Flow Meter. This device features a 1/4 inch measurement scale, ideal for piping systems. Advanced Solenoid Valve Technology: Equipped with a high-quality PE solenoid valve, this flow meter provides reliable and automatic control and Reliable: Built to last, the flow meter boasts a robust construction that withstands environmental elements Easy Installation: Designed for hassle-free setup, this automatic flow controller can be integrated into your existing irrigation infrastructure with minimal effort Flow Meter Controller Voltage:DC 24V ±8V / 1A Solenoid Valve Voltage:DC 12V / 0.3A-0.5A (Normally Closed) Flow Sensor Voltage:DC 5V (Pulse Input) Flow Control Range:0.1 - 9999 L/Gal Adjustable K-Value:Yes (1-9999 L/min or Gal/min) (The product appearance and printed words depending on the batch, but this does not affect use) Colour:As Shown Material:POM Package Contents: 1 * dosing instrument 1 * flow meter 1 * solenoid valve 1 * power supply Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.