Light weight, compact, easy to install. Copper impeller shaft, wearable liner. No leakage from the sealing ring of the upper and lower power structure. Interface size: 6 points (G3/4). Working voltage range: DC 5-18V. Inner diameter/outer diameter: 18.1/25.5mm. Thread length: 13.75mm. Water pressure resistance: ≤1.75MPa. Output pulse high level: DC 4.7V (input voltage DC 5V). Output pulse duty cycle: 50±10%. Insulation resistance: 100MΩ. Flow range: 1-30L/MIN ±3%. Sealing: Each hole is closed and tested with 1.7MPa water pressure for 1 minute; no leakage or deformation. Flow pulse characteristics: (6.6×Q), Q=L/Min ±3%, producing 396 pulses per liter of water. Note: Product design may vary slightly between batches; such differences do not affect functionality. Type: -B6 Color: Gold Material: Copper Package Contents: 1 × Flow Sensor Only the above package content is included; other items are not part of this package. Note: Lighting effects and display settings may cause slight color variations between the image and the actual item. Measurement error allowed: ±1-3cm.