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 sealed and tested with 1.7MPa water pressure for 1 minute; no leakage or deformation. Flow pulse characteristics: (6.6 × Q), Q = L/Min ± 3%, equivalent to 396 pulses per liter of water. Note: Product design may vary slightly between batches; minor differences in appearance or color may occur but do not affect functionality. Type: B6. Color: Gold. Material: Copper. Package Contents: 1 × Flow Sensor. Only the items listed are included; other accessories are not part of the package. Note: Lighting conditions and monitor settings may cause slight variations in color between the product image and actual item. Measurement error allowance: ±1-3cm.