--- product_id: 390992255 title: "Multicolor Acrylic 3-30LPM LZQ-7 Oxygen Air Gas Flowmeter with Control Valve for Oxygen Adjustable" brand: "cnbtr" price: "S$39" currency: SGD in_stock: true category: "Cnbtr" url: https://www.desertcart.sg/products/390992255-multicolor-acrylic-3-30lpm-lzq-7-oxygen-air-gas-flowmeter store_origin: SG region: Singapore --- # Multicolor design for easy visibility Precision flow range 3-30 LPM ±5% accuracy Durable acrylic + metal build, 100g lightweight Multicolor Acrylic 3-30LPM LZQ-7 Oxygen Air Gas Flowmeter with Control Valve for Oxygen Adjustable **Brand:** cnbtr **Price:** S$39 **Availability:** ✅ In Stock ## Summary > 🌬️ Control your oxygen flow like a pro — precision meets style! ## Quick Answers - **What is this?** Multicolor Acrylic 3-30LPM LZQ-7 Oxygen Air Gas Flowmeter with Control Valve for Oxygen Adjustable by cnbtr - **How much does it cost?** S$39 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.sg](https://www.desertcart.sg/products/390992255-multicolor-acrylic-3-30lpm-lzq-7-oxygen-air-gas-flowmeter) ## Best For - cnbtr enthusiasts ## Why This Product - Trusted cnbtr brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Versatile Application:** Trusted in hospitals, oxygen bars, and industrial environments—your go-to tool for reliable, single-phase non-pulsating gas flow measurement. - • **Precision Control Valve:** Fine-tune oxygen flow from 3 to 30 LPM with ±5% accuracy, ensuring optimal performance for medical, industrial, or lifestyle needs. - • **Robust & Lightweight Build:** Crafted from acrylic, plastic, and metal, this 100g flowmeter balances durability with portability for seamless integration anywhere. - • **Vibrant Multicolor Display:** Instantly track oxygen flow with a visually striking, easy-to-read interface that stands out in any professional setting. - • **User-Friendly & Long-Lasting:** Effortless setup and maintenance-free operation mean you stay focused on what matters, while the flowmeter delivers consistent results. ## Overview The CNBTR Multicolor Acrylic LZQ-7 Oxygen Air Gas Flowmeter offers precise oxygen flow measurement and control within 3-30 LPM at ±5% accuracy. Built with durable acrylic, plastic, and metal, it weighs just 100g and features a vibrant multicolor design for easy reading. Ideal for hospitals, oxygen bars, and industrial use, it ensures reliable, single-phase non-pulsating gas flow monitoring with a user-friendly control valve and lasting performance. ## Description Oxygen Rotameter, also known as variable area flow meter, is a back fitting style gas flowmeter specially designed for oxygen gas measurement. This oxygen flowmeter features a transparent acrylic cylindrical body for clear float observation and direct scale reading. Equipped with a flow-control knob, it supports convenient manual adjustment to stabilize your oxygen flow rate. This oxygen rotameter is oil-free and degreased for oxygen service, eliminating potential safety problems caused by grease. Simple vertical installation, no power supply required, low maintenance and stable performance. Widely used for oxygen monitoring in laboratory equipment, oxygen generators, welding gas pipelines and industrial gas systems. Back fitting panel mount design saves installation space, perfect for equipment panel integration. Compact size and lightweight structure make it ideal for OEM equipment, bench test and small gas pipeline projects. Product Details Model Number: 10914036 For Use With: Gases Calibrated With: Oxygen Calibration Media Specific Gravity: 1.104 Calibration Media Pressure: 50psi Calibration Media Temperature: 70° F Connection Style: Barbed Tube Inlet Connection: Barbed Tube 8mm/0.31in Outlet Connection: Barbed Tube 8mm/0.31in Tube Connection Gender: Male Flow Measurement Type: Variable Area Flow Measurement Scale: Liters per Minute Flow Range: 0 to 5 LPM Overall Height: 90mm Accuracy: ± 5% Maximum Pressure: 0.6MPa Min. Temperature: 0°C Maximum Temperature: 60° C Body Material: Acrylic Plastic Mounting Style: Inline Mounting Orientation: Vertical Display Type: Scale Features: Flow-Control Knob ## Features - OXYGEN FLOW RATE: 3 to 30 LPM Flow Range. As oxygen flows through, it pushes an indicator up the scale, showing you the flow rate. - VERTICAL INSTALLATION: Mount this flow meter vertically inline with your oxygen system, so oxygen flows up from the bottom. - FLOW-CONTROL KNOB: The flow-control knob lets you open and close the valve at the inlet to regulate the flow rate within the range. - BACK FITTING STYLE: Fittings on the back let you install these flowmeters in instrument panels. Mount them vertically inline with your piping system, so that to avoid the tube tangles and a clean and sleek flowmeter for oxygen. - OTHER GAS MEASUREMENT: This flowmeter is calibrated with oxygen but can be used with other gases. If you’re using these with a gas other than oxygen, you’ll need to calculate the flow rate by multiplying the number shown on the scale by the specific-gravity conversion factor for the gas. - GAS COMPATIBILITY NOTICE: Gas compatibility must be determined by the customer based on the conditions in which the product is being used, including the presence of other chemicals, temperature, and consistency. ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B01D49PA58 | | ASIN | B01D49PA58 | | Batteries Required? | No | | Best Sellers Rank | #155,501 in Health ( See Top 100 in Health ) #186 in Oxygen Therapy Products | | Customer Reviews | 4.6 4.6 out of 5 stars (51) | | Customer reviews | 4.6 4.6 out of 5 stars (51) | | Date First Available | 6 June 2017 | | Date First Available | 6 June 2017 | | Finish | Uncoated | | Item Weight | 100 g | | Item model number | CNBTR51 | | Item model number | CNBTR51 | | Manufacturer | CNBTR | | Manufacturer | CNBTR | | Material | Acrylic, plastic, metal | | Measurement System | Inch | | Number Of Pieces | 1 | | Package Dimensions | 12.9 x 7.9 x 3.71 cm; 100 g | | Package Dimensions | 12.9 x 7.9 x 3.71 cm; 100 g | | Part number | CNBTR51 | ## Product Details - **Brand:** CNBTR - **Finish type:** Uncoated - **Material:** Acrylic, plastic, metal - **Shank type:** Hex - **Tool flute type:** Spiral ## Images ![Multicolor Acrylic 3-30LPM LZQ-7 Oxygen Air Gas Flowmeter with Control Valve for Oxygen Adjustable - Image 1](https://m.media-amazon.com/images/I/611M-NpeUJL.jpg) ## Questions & Answers **Q: Hello, I'm looking for a flowmeter that can give a steady 1L/m from a compressed gas cylinder with 2000psi, can this product do that?** A: This is not the flowmeter for that range. If you look at the bottom of the range, you will see that the last marking is 3 LPM. Secondly, you do not say what the input pressure is? If it is 2,000 psi, you would blow this and most any other flowmeter to bits and possibly injure yourself or others. The maximum working pressure is listed in the specifications is "Working pressure: ≤0.6Mpa," which is 87 psi. I use it on a CO2 cylinder with a reduction valve so that the max pressure is no more than 40 psi at the flowmeter. Even then I had to reseal the fitting at the bottom of the meter in order to stop a slow leak. Cost me a tank of gas before I figured that one out. I am not so much interested in the actual reading as to know whether or not gas is flowing, so the gauge calibration, which is for oxygen, is not particularly applicable to my use. BTW, the absolute kinematic viscosity of carbon dioxide at 20°C is 1.47 x 10-5 Pa s vs oxygen at 20°C, which is 2.04 x 10-5 Pa s. So the gauge would read about 28% low for my application. YMMV. ## Frequently Bought Together - CNBTR Multicolor Acrylic 3-30LPM LZQ-7 Oxygen Air Gas Flowmeter with Control Valve for Oxygen Adjustable - JIAWANSHUN Oxygen Air Flow Meter 0.1-1.5LPM Gas Flow Regulator Gas Flowmeter with Copper Connector - Watris Veiyi LZQ-7 Oxygen Air Gas Flow Meter, 1-10LPM Air Gas Flowmeter with Control Valve for Measuring Controlling Gas Flow --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.sg/products/390992255-multicolor-acrylic-3-30lpm-lzq-7-oxygen-air-gas-flowmeter](https://www.desertcart.sg/products/390992255-multicolor-acrylic-3-30lpm-lzq-7-oxygen-air-gas-flowmeter) --- *Product available on Desertcart Singapore* *Store origin: SG* *Last updated: 2026-10-12*