Your cart is empty.
Your cart is empty.Product Description
Adjustable flow rate
widely used for measuring and controlling the flow of oxygen concentrator,also used for gas
0.1-1.5LPM Clear reading
The number facing the centerline of the black glass bead is the current reading. The blue background is clearly visible.
M10 universal thread
Easy to install, please install vertically
Leakage prevention
Rafael Meza Yela
Reviewed in Mexico on February 26, 2025
Adecuada relación de precio y calidad, es funcional
Earl Vickery
Reviewed in the United States on March 20, 2024
These flowmeters are small and easy to use. Perfect for experiments or gas flow monitoring. Price is great for the product.
George F
Reviewed in the United States on March 18, 2024
It is noted to be for oxygen but I'm using it for CO2 so I doubt the flow rate numbers to be accurate, but it does allow the gas flow to be controlled. The unit has no markings as to the input and output. I had to use trial and error to make it functional. Once functional the flow was very controllable. I liked it over other flow rate controllers because of the availability of very low flow rates. I'm using it to increase the amount of CO2 for some small, enclosed plants to help them grow better.
Kevin Wang
Reviewed in the United States on May 4, 2023
They are not machined properly so the ball sticks! you have to tap the side every time you want a somewhat accurate reading.
Wombat37
Reviewed in the United States on March 20, 2023
I bought this rotameter to measure and control fairly low flows of carbon dioxide gas. The graduations on the scale are for oxygen flow but I can apply a factor or even recalibrate it for carbon dioxide.I like the metal barbed nozzles which easily take 1/4" thick-walled silicone tubing. The needle valve is finely made with a smooth sharp metal cone adjusted into a metal seat.It's important that these rotameters are mounted absolutely vertically for best accuracy. I designed a 3D-printed stand to hold the rotameter. However, the nuts that are needed to mount it (and are shown in the Amazon listing) were not included with the product. These are very unusual nuts with special threads and aren't locally available. So, now I have to take the time, trouble and expense to find suitable nuts online before I can mount this device. Either that or design and 3D-print some nylon nuts. I am not at all pleased about this - why can't the vendor include these difficult-to-find nuts with the product as expected in the Amazon listing?UPDATEI managed to identify the required nuts as being M10 x 1.0. It would cost me ~$10 to order a packet of these on Amazon (they're not available locally). I just printed some flanged nuts on my 3D printer out of PETG - these worked well - see photos.
David B
Reviewed in the United States on November 30, 2023
As I said in another review for a separate product, I have no idea whether this product is accurate or not. However, I believe that it is and that it restricts flow to an appropriate rate for my application.I inject pure oxygen into unfermented wort prior to adding yeast to make beer. I selected this product as a replacement for another that was broken. The previous flowmeter had nylon connectors instead of sturdier metal ones.The flowmeter enables me to deliver the oxygen at steady rate, and not overly oxygenate the wort. That's why I bought the first meter. I bought this one hoping it's more permanent.I've not tried setting the output to my mouth and inhaling pure oxygen, and I'm not sure what that would even do to me. This review isn't about that.
Cathy Sal
Reviewed in Canada on August 5, 2020
Very pleased with the products, background color makes for easy readings!! Product came very well packaged and secure. Excellent quality!!!
💚TosaT💚
Reviewed in the United States on June 8, 2020
I am using this with an oxygen concentrator and ozone set up. For the price, it works great. Definitely can handle the high pressure.
C. House
Reviewed in the United States on July 14, 2019
I attached this air flow meter to my automotive smoke machine to help detect the flow in a closed system. The smoke machine helps to find leaks in a closed system. The air flow meter used in conjunction with the smoke machine helped me diagnose a leak and also helped to determine when the system had no leaks. No flow in a closed system means no leaks. Product worked great for my use. Well built and excellent price.
KM
Reviewed in the United States on February 16, 2019
Use - Homebrewers, wort oxygenation, beer, brewing only in this review.I was exremely pleased that the barbs worked with the aeration tubing that came in my Northern Oxygenation Kit 2.0. All I had to do was cut my tubing and splice it in. Anyone wonder size of barbs now you know!I will use later this week and update how it goes
Recommended Products
$818.80
$ 99 .00 $99.00