Features: Thread: 1-inch, Working voltage: DC3.5-24V. Light weight, small size, easy to install. Flow range:1-60L/min, Working pressure: 1.75(MPa). Seal Ring with the upper and lower force structure never leaks. It is mainly used in petrochemical industry, residential area flow control, waterworks-, farmland and garden irrigation, etc. Package Includes: 1x Water Flow Sensor Specifications: Material: Plastic Size: approx 4.3x7.2x4.6cm/1.7x2.8x1.8in Thread: G1 inch Measuring range: 60-3600(m3-/h) Accuracy: 160LMIN Working pressure: 1.75(MPa) Working voltage: DC3.5-24V Wiring: Red-IN- Positive Terminal Yellow-OUT-Signal Output Line Black-GND-Negative Terminal note: Please allow 1-3cm error due to manual measurement. pls make sure you do not mind before you bid. Due to the difference between different monitors, the picture may not reflect the actual color of the item.