Water Pressure Resistance: Greater than 1.75MPa Working Voltage Range: DC5~15V Insulation Resistance: Greater than 100m Accuracy [within 1.25L MIN]: 5% High Level Output Pulse: Greater than DC 4.7 V (DC input voltage 5 V) Low Level Output Pulse: Less than DC 0.5 V (input voltage DC 5 V) Pulse Output Duty Cycle: 90% 50% ±10% Note: Due to different production batches, the details of the item may be slightly different. If you mind the difference, please purchase carefully. There may be a difference of 1 to 3 cm due to manual measurement. Due to the different display and different light, the picture may not reflect the actual color of the item. Thank you for your understanding. Color: Brass Material: Metal Size: 58mm Package Contents: 1* Water Flow Sensor Only the above package content, other products are not included. Note: Light and different displays may cause the color of the item in the picture to be slightly different from the real one. The allowed measurement error is +/- 1-3cm.