Clear Turbine Water Flow Sensor with 3-pin JST

Use this awesome basic flow meter with a completely transparent plastic body to measure liquid or water flow in your solar, computer cooling, or gardening projects. This sensor is installed in your water line and uses a pinwheel sensor to measure the amount of liquid passing through. The pinwheel has a small magnet attached, and there's a Hall effect magnetic sensor on the other side of the plastic tube. It can detect the number of pinwheel spins through the plastic wall, keeping the sensor safe and dry. The sensor comes with a JST PH 2mm pitch connector and three wires: red (5 - 15VDC), black (ground), and yellow (Hall effect pulse output). By counting the pulses from the sensor output, you can easily monitor fluid movement. Each pulse represents approximately 2.25 milliliters. Note that this is not a high - precision sensor. The pulse rate may vary slightly depending on the flow rate, fluid pressure, and sensor orientation. It's designed for a flow rate of 1 to 30 Liters/min. If you need better than 10% precision, it will require careful calibration. However, it's perfect for basic measurement tasks!

Using this water flow sensor is quite simple. First, install the sensor in your water line. Make sure it's properly connected using the JST PH 2mm pitch connector and the three wires - red for power (5 - 15VDC), black for ground, and yellow for the Hall effect pulse output. To measure the water flow, count the pulses from the yellow wire. Each pulse roughly equals 2.25 milliliters. Keep in mind that this sensor isn't super precise. The pulse rate can change based on the flow rate, fluid pressure, and how you position the sensor. It works best for flow rates between 1 and 30 Liters/min. If you need more accurate measurements, you'll have to calibrate it carefully. For maintenance, just keep the plastic body clean. Avoid exposing it to sharp objects that could scratch or damage it. Also, make sure the wires are not pulled or bent too much to prevent connection issues.