what can be done to get accurate readings? the one i received is 35% low. 4lpm reads 2.5lpm. this is no mistake as i checked it with 4 sources.

Throw it away and buy something more substantial. These are junk.

Are the connectors the correct size to use with medical 02 flared female ends of canula & long line?

it is a 1/4 fitting on the flow meter. O2 hose is about an 1/8 inch so it is a tight squeeze. Best bet is to get a plastic reducer coupling available on Amazon.com. Get a 1/4 by 1/8 barb reducer and go to you local hardware store and get a 1 foot length of some 1/4 ID clear tubing and couple it that way. You can use small zip ties as hose clamps if you need to.

Can this regulate to a 1L/m flow from a gas cannister that has 2000psia?

No would not be safe. you would have to incorporate a pressure regulator between the 2000 PSI and the plastic flow meter. refer the manufacture for the maximum pressure rating.

I am using a 1/4 inch O.D. copper tubing but I am not sure if it could use it to connect with this flow meter

Maybe you could use a short piece of rubber or PVC tubing

Oxygen Flow Meter 0 5 Lpm Acylic Flowmeter Gas Acrylic

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Description

⚡ Elevate your oxygen flow game with precision and ease!

USER FRIENDLY DESIGN - Simple installation with threaded interface and easy-to-read flow scale for quick adjustments.
DURABLE ACRYLIC BUILD - Robust acrylic body paired with metal fittings for long-lasting industrial use.
PRECISION FLOW CONTROL - Accurately measures oxygen flow from 0 to 5 LPM for reliable performance.
TRUSTED BY PROFESSIONALS - Highly rated for accuracy and durability, ideal for medical and industrial oxygen monitoring.
UNIVERSAL HOSE COMPATIBILITY - 8mm barbed connection ensures seamless integration with standard oxygen and air hoses.

The CNBTR Oxygen Flow Meter offers precise measurement of oxygen flow rates between 0-5 LPM, featuring an easy-to-connect 8mm hose barb and durable acrylic construction with metal fittings. Designed for both industrial and medical applications, it ensures reliable, non-pulsating gas flow monitoring with a user-friendly threaded interface.

Specifications

ASIN	B019YS4PSG
Batteries Included?	No
Batteries Required?	No
Best Sellers Rank	#159,094 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #105 in Flowmeters
Customer Reviews	4.5 4.5 out of 5 stars (78)
Date First Available	December 30, 2015
Is Discontinued By Manufacturer	No
Item Weight	2.5 ounces
Item model number	B4
Manufacturer	yqltd
Material	plastic
Package Dimensions	4.41 x 3.11 x 1.42 inches
Part Number	B4

Reviews

K**R

19.09.2020

P**L

10.04.2021

D**B

30.11.2023

M**K

19.06.2021

S**R

19.03.2018

T**Y

19.05.2024

F**L

4.09.2019

M**W

15.07.2016

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325 DH

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Sold byAmazon MoroccoDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to Morocco.

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Oxygen Flow Meter 0-5 LPM Acylic Flowmeter Gas Acrylic Metal Fitting for Oxygen Air Gas Conectrator

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