Product Description
MEMS Thermal Gas Mass Flow Meter Sensor Digital Display Air Nitrogen Oxygen CO2 4-20mA RS485 High Precision Totalizer Control
MEMS Thermal Gas Mass Flow Meter Sensor Digital Display Air Nitrogen Oxygen CO2 4-20mA RS485 High Precision Totalizer Control1.NOTE
Due to SKU quantity limitations, the full list of measurable gases and flow ranges cannot be displayed. If you need to measure other gases or flow ranges, please contact us.
Media: Air, Oxygen, Nitrogen, Argon, Methane, Propane, Carbon Dioxide, Hydrogen, Nitrogen
(Please be sure to specify the medium when placing an order. Different media have different densities and require different factory calibrations. If not specified, air will be used by default.)
Default Specifications:
Range: 0–200 L/min
Power Supply: DC 24V
Temperature: -10 to 55°C
Connection: G3/8 male thread
Accuracy: 0.2%
Output: RS485 / 4–20 mA
Customizable Options:
Connection: Conversion to ferrule connector, quick-connect fitting, or hose barb
Thread: G3/4 male thread, NPT3/4 male thread
2. Parameters
Parameter | Specification |
Measuring Medium | Air, O₂, N₂, Ar, CH₄, CO₂, H₂, etc. |
Flow Range | 5–1000 NL/min |
Min Detectable Flow | 5 NL/min |
Accuracy | ±2.0% FS |
Power Supply | DC 24V / 2.5W |
Working Pressure | ≤1.0 MPa |
Medium Temperature | -10~55℃ |
Humidity | <95% RH (non-condensing) |
Display | Instantaneous and total flow |
Analog Output | 4–20 mA |
Digital Output | RS485 (Modbus RTU, optional) |
Switch Output | Customizable NPN/PNP |
Response Time | 50–1000 ms |
Connection Type | G3/8 or G3/4 male thread |
3. Features
Multi-Gas Compatibility
Works with various gases including air, oxygen, nitrogen, methane, hydrogen, and more.
Wide Flow Range with High Accuracy
Measures from 5 to 1000 NL/min with ±2.0% FS accuracy for reliable monitoring.
Real-Time Flow Monitoring
Displays both instantaneous and cumulative flow for complete process visibility.
Versatile Output Options
Supports 4–20 mA analog output and RS485 digital communication (Modbus RTU).
Compact MEMS Sensor Design
Low power consumption, high sensitivity, and long service life in a compact body.
4. Applications
Widely used in metallurgy, papermaking, pharmaceutical manufacturing, hydropower engineering, petroleum, and chemical industries.
5. FAQs
Q1: Is it suitable for hydrogen or methane gas?
A1: Yes, it is designed to handle hydrogen, methane, and several industrial gases.
Q2: Does it support both analog and digital outputs?
A2: Yes, it supports 4–20 mA analog output and optional RS485 with Modbus RTU.
Q3: Can I customize the switch output?
A3: Yes, NPN or PNP switch outputs are available upon request.
About Prime Living
Prime Living is a Canadian online store offering a carefully selected range of quality products for home, automotive, tools, outdoor living, electronics and more.
We are committed to fast order processing, secure packaging and reliable tracked shipping to provide an excellent shopping experience.
Shipping policy
We carefully handle each order to ensure your package arrives quickly and safely. Please note that factors such as weather, postal traffic, or carrier performance may occasionally cause delays beyond our control.
We provide free shipping and dispatch all orders within 2 business days of payment, often sooner. All shipments are sent via international express air shipping, with a tracking number provided so you can follow your order every step of the way.
. Please provide a physical address, as we do not ship to P.O. Boxes.
Returns
Your satisfaction is important to us. Hexlight offers a 14-day Free return policy: if you are not fully satisfied with your purchase, you may request either a full refund or an exchange. All return shipping costs are fully covered by us.
Condition
Brand New
Shipping
This item is shipped directly from our supplier in China with tracking.