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Your cart is empty. Our products are fine made with nice materials and good workmanship, strict quality control, guarantee in after service.
The flowmeter is light and handy, easy to install. The sealing ring make the connection firm, the sealing performance is good and the problem of water leakage is avoided.
More details about the flow meter:
F=（7.5*Q）±2%, Q=L/Min, error: ±2%
Working range: 1-30L/min
Working voltage: DC 5-24 V
Water Pressure: ≤1.75Mpa
Liquid temperature: 0-100℃
Maximum current consumption: 15 mA(DC 5V)
Wire length: 15 cm
Size: 62mm x 36mm x 36mm(L*W*H)
Refer to the wiring:
Red wire: VCC(+)
Black wire: GND(-)
Yellow wire: Signal output
Package:
1 x G1/2 inch flowmeter
Grant
Reviewed in Canada on February 13, 2025
Believe it or not I put these on my flexicoil sprayer the 65xl and was able to calibrate my nozzles to the new meter and it was pretty accurate I bought a bag of 20 so I had back up but the original lasted 2 years now pretty durable wasn’t expecting that
Hunter
Reviewed in the United States on August 29, 2024
Works. Definitely seeing the +/- 5% difference in output.A few things I discovered:* The sensor needs at least 8V. I had a 9v power supply left over from some other equipment. However, a raspberry PI can only take 3.3V into its GPIO port. (and no pull-up resistor is needed) So I sent 8V into this sensor, and on the output pin I installed a 10k resistor tied to ground. This dropped the output voltage to around 3.7V.* I wanted to record data in gallons per hour. This is from my most recent calibration where I dumped water into a bucket marked off with quarters of a gallon on the side. total_gal = total_gal + 0.001115 # 897 pulses per gal = 0.001115 gal per pulse. This code runs whenever a change from high to low occurs on the output pin. flow = (count / 897.0)*3600 # pulses/897 is gal per sec. *3600 is gal per hour* the label faces down. There is a lot of play in the spindle inside. making the label face down puts the impeller more directly in line with the water flow* make sure you install it in the right direction. The arrow on the label was correct for me.* I used waterproof automotive plugs, sealed on the ends with caulk, since this thing will be outside measuring the irrigation water usage.
Brian W.
Reviewed in the United States on June 26, 2023
I've adapted this Gredia GR-201 1/2" flow sensor paired with a Digiten Flow Meter to monitor flow rate thru a UV sterilizer. The sterilizer I have requires a flow at 37 GPH optimum and 60 GPH max to be effective eradicating protozoa.Out of the box the pairing of the meter and sensor was way off reporting 16 GPH while a had a gate valve nearly closed.So to calibrate it, the meter has a K-factor value that has to be adjusted to the sensor you pair it with. The default was a K-factor value of 1.98.I did a Google Bard search for what the sensors K-factor should be... 11.45. I set the meters K-factor to that. It was much closer but not accurate.I adjusted my valve until the meter was reading 1 GPH of flow. I set up a bucket to divert the water exiting the system into so I could measure the amount dispensed in a minute. I recorded .453 gal. with the K- 11.45.Now a little math, divide the current K- (11.45) by the flow it produced (0.453) while the valve restricted flow with the meter reading 1 GPM.The resulting new K-factor of 25.27 worked precisely. Well, as precise as using a large measuring cup to measure the amount of water dispensed.I re-ran the test, I got 1 gallon at the 1 minute mark, 3 gal at 3 minutes.The one annoying thing about the meter is the backlit display goes dark after 15 seconds. Annoying during the calibration when your hands are busy turning on/off a pump and a timer. But in actual use I'll only be using this to set the gate valve position and the backlighting won't so much be an issue.I hope this helps those trying to get a more accurate reading.
Alex E
Reviewed in Canada on March 17, 2023
Seals fine on NPT threads with plenty of teflon tape, at least below 100 psi. If you're operating above that, don't buy Amazon grade sensors.It works down to 3.3v so you can hook it directly to a modern microcontroller such as the ESP32. Calibrate it yourself, though, if you want accuracy.
Customer
Reviewed in the United States on December 30, 2023
peter passetchnyi
Reviewed in Canada on September 11, 2022
I was able to connect this sensor to Raypak Avia water heater and it is compatible. I use ABC adapters from Home Depot ex: "LESSO 2 In. ABS Female Adapter Hub x FIPT" or "LESSO ABS DWV 2" Union HxH" which makes it easy to detach if needed.So far I think it's a good product.
David luneau
Reviewed in Canada on March 22, 2021
Livraison très rapide je me sert de ce compteur d’eau pour calculer l’eau d’érable
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