💧 Measure smarter, live cleaner — water flow mastery at your fingertips!
The Hadronix HDRX-YF-S402B is a compact, food-grade water flow meter featuring a hall effect sensor and 1/4" quick-connect fittings for easy installation. It supports a wide voltage range (3.5-12V) and pressures up to 116 PSI, making it ideal for DIY automation with Arduino, Raspberry Pi, and reverse osmosis systems. Included JST-XH connectors enable immediate breadboard compatibility, empowering precise, real-time liquid flow monitoring for filtration, irrigation, and home automation projects.
| ASIN | B07JWD4C46 |
| Date First Available | October 16, 2018 |
| Is Discontinued By Manufacturer | No |
| Item Weight | 1.3 ounces |
| Manufacturer | Hadronix |
| Product Dimensions | 2.36 x 1.05 x 1.38 inches |
M**0
Great price and works good
We never have any idea when our RO membrane should be changed. Our water is of fairly high quality before the RO so it’s hard to tell when the RO filter is letting stuff through. Now we can measure when to change. Attaching this to a counter (raspberry pi or others) can be a bit of a steep Learning curve but I found it a fun technical challenge. Once calibration is done this is meter is quite accurate. Built in push connections make installation as easy as LEGO.
D**L
Works Great.
I am giving this five starts because it has worked great so far after some initial testing. I will be looking forward to using it to automate the watering of my tomato plants in the future.
E**K
Just works.
Simple to use. Just set up a rising edge interrupt to count the pulses and calculate flow volume and rate.
S**E
DAC or voltage divider required
No instructions or schematics
J**E
works
Seems to work as advertised though the pulse rate seems a little inconsistent
G**Y
Great Flow Meter
This product works as advertised. Great flow meter. very accurate water control.
B**.
Just what I was looking for!
Works flawlessly with my automated home irrigation system.
Trustpilot
2 months ago
1 month ago