Features: Easy to install. Stable characteristic, high accuracy. High quality material, durable in use. 3-in-1 TDS temperature flow sensor, multifunctional. Widely used for drinking machine, coffee machine, etc. Specifications: Water Pressure Resistance: 0.35MPa Operating Voltage- Range: DC5~24V Insulation Resistance: Large Than 100MΩ Accuracy: 0.3~10L/min- Flow-Pulse Characteristic: (15x Q-2)±2% Q=L/MIN- High Level DC4.7V in Output Pulse (Input Voltage- DC5V) Output Pulse Low Level Output Pulse Duty Ratio: 50%±10% Length: Approx. 7.7cm/3.03in Package Includes: 1x Water Flow Sensor note: Please allow 1-2cm errors due to manual measurement, make sure that you do not mind before you order. Due to the difference between different monitors, the picture may not reflect the actual color of the item.