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: less than or equal to 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%, that is, 396 pulses per liter of water. Note: The product may be updated constantly; due to different batches, the actual product may have slight differences or color variations, which do not affect use. Type: -B6 Color: Gold Material: Copper Package Contents: 1 × Flow Sensor 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 to be slightly different from the real thing. The measurement allowed error is +/- 1-3cm.