A liquid flow sensor made of high-class PPS material, chemically and mechanically resistant, is used to control external devices. It even reacts to a small flow by generating a high-resolution voltage signal to the controller. Sample flowmeter design here. Product features Very easy to install A wide range of usability Simple, low-failure design Pulse output Technical data Operating voltage: 3.5-24 VDC Working pressure maximum 17.5 bar Maximum operating current 10mA Working temperature -20 to +90 ° C 1/2 inch connections (outer thread diameter 20mm) Flow: 1-30 Liters / minute Resolution F = (7.8 * Q) ± 10% Q = L / MIN Number of pulses per liter of liquid: 468 + - 10% For example, for a flow of 1 liter / minute, the sensor will generate a square-wave signal with a duty cycle of about 50% and a frequency of 7.8 Hz (+ -10%). Similarly, for a flow of 10 liters / minute it will be 78 Hz (+ -10%) https://elecena.pl/product/22620936/1-30l-min-1-2-flow-sensor-meter-for-liquid-water-yf-s201 2023-02-23 https://elecena.pl/product/22620936/1-30l-min-1-2-flow-sensor-meter-for-liquid-water-yf-s201 2023-02-24 https://elecena.pl/product/22620936/1-30l-min-1-2-flow-sensor-meter-for-liquid-water-yf-s201 2023-08-16 https://elecena.pl/product/22620936/1-30l-min-1-2-flow-sensor-meter-for-liquid-water-yf-s201 2025-10-25 https://elecena.pl/product/22620936/1-30l-min-1-2-flow-sensor-meter-for-liquid-water-yf-s201 2025-10-29