Plug And Play Flow Sensor With Half Inch NPT Thread For Arduino And Raspberry Pi, 1 To 30 Liters Per Minute Flow Meter, Flow Meter Counter, Compatible With Reverse Osmosis Filters

Compact NPT-thread water flow sensor for Arduino and Pi
✔️ 1-30 L/min, 1/2 in NPT, 150 mm cable, 5-18V, single unit

This plug-and-play water flow sensor is a compact, NPT-thread flow meter designed for easy hookup with Arduino, Raspberry Pi, and reverse osmosis systems. It outputs a square wave pulse for every revolution, and the integrated hall effect sensor stays sealed from the water path to keep electronics safe.

✅ 1-30 L/min flow range
✅ G1/2 in NPT inlet/outlet
✅ Hall effect sensor, sealed from water
✅ 450 pulses per liter output
✅ Output: square wave pulse, 5-18 V compatible
✅ Cable length 150 mm (5.9 in)

💡 What is a water flow sensor used for in DIY projects?

- Handy for tracking water usage in RO systems and coffee machines - Works with Arduino and Raspberry Pi via pulse output - Helps with flow-based control and monitoring to prevent waste