Features: Experience precise water Flows measurement with our YF-S302 Water Flows Meter, featuring a G1/4inch Interfaces and a broad Flows ranges of 0.5 to 6 liters per , perfect for accurate monitoring in various systems. Constructed from material, this Meter ensures consistent performances with impressive pulse frequency formula F=(23 Q 3)±3%, delivering 1377 pulses per liter for reliable data. Suitable for enthusiasts, engineers, and professional in the field of automation and fluid repair man who require accurate water Flows monitoring. This Multifunction Flows Meter is suitable for use in water cooling systems, water heating management, irrigation systems, and other applications where water Flows needs to be quantified. With easy to connect wire ( for positive, Yellow for signal output, Black for ground), the YF-S302 offers a straightforward setups process, ensuring a hassle frees integration into your existing projects or systems. Specifications: Material: plastic Size: about 35x58mm/1.38x2.28inch Thread: G1/4 in Positive Yellow Output Black Negative Voltages DC3.5-24V Inner diameter/Outer diameter Inner diameter Water Inlets 7mm Water outlet 8mm/ outer diameter 13mm screw length 10.3mm Material Flows ranges 0.5~6L1min Pulse frequency F=(23xQ-3) ±3%Q=L/ that is 1377 pulses a litre water water pressure ≤0.8MPa Output pulse high level >DC4.7V (input Voltages DC5V insulation resistance >100MO Output pulse duty cycle 50±10% Package Includes: 1xWater Flows Meter note: Please allow 1 to 3cm error due to manual measurement, please make sure you do not mind before you bid, Due to the differences between different monitors, the picture may not reflect the actual colorful of the item.