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  • Smart Modbus Remote Thermal Gas Mass Flow Meter Dn20 Thread Type with RS485 Oxygen CO2 Flow Meter OEM Customizable
  • Smart Modbus Remote Thermal Gas Mass Flow Meter Dn20 Thread Type with RS485 Oxygen CO2 Flow Meter OEM Customizable
  • Smart Modbus Remote Thermal Gas Mass Flow Meter Dn20 Thread Type with RS485 Oxygen CO2 Flow Meter OEM Customizable
  • Smart Modbus Remote Thermal Gas Mass Flow Meter Dn20 Thread Type with RS485 Oxygen CO2 Flow Meter OEM Customizable
  • Smart Modbus Remote Thermal Gas Mass Flow Meter Dn20 Thread Type with RS485 Oxygen CO2 Flow Meter OEM Customizable
  • Smart Modbus Remote Thermal Gas Mass Flow Meter Dn20 Thread Type with RS485 Oxygen CO2 Flow Meter OEM Customizable
Smart Modbus Remote Thermal Gas Mass Flow Meter Dn20 Thread Type with RS485 Oxygen CO2 Flow Meter OEM Customizable
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Smart Modbus Remote Thermal Gas Mass Flow Meter Dn20 Thread Type with RS485 Oxygen CO2 Flow Meter OEM Customizable

  • 1 - 19 Pieces
    $398.46
  • 20 - 34 Pieces
    $376.73
  • >= 35 Pieces
    $361.43

Smart Modbus Remote Thermal Gas Mass Flow Meter Dn20 Thread Type with RS485 Oxygen CO2 Flow Meter OEM Customizable

Product overview

Core functionalities

Applicable scenarios

Unique advantages

  • High-Accuracy Gas Measurement: Equipped with thermal sensing technology, this flow meter ensures precise measurement of gas and air flow with ±1.5% accuracy.
  • Modbus Remote Monitoring: Supports RS485 communication and 4-20mA output for real-time data transmission and remote control in industrial or commercial settings.

Key features

  • 1. Corrosion-Resistant Metal Body

  • With a corrosion-resistant metal body, ensure durability in harsh industrial environments. Outperforming plastic-bodied models in corrosive settings*

  • 2. Modbus RTU/ASCII Protocol Support

  • With Modbus RTU/ASCII Protocol, enable remote monitoring and control via RS485. 20% faster setup than traditional models without smart communication interfaces*

  • 3. 1.5% Accuracy Measurement

  • With ±1.5% accuracy, ensure precise gas flow measurements. Superior to traditional 2-3% accuracy in variable area flow meters*

  • 4. Multi-Size DN Compatibility (DN20-200)

  • With flange/thread connections and DN20-200 sizing options, adapt to diverse industrial and commercial gas/air applications. Broader compatibility than single-size competitors*

  • 5. CE Certified Safety Compliance

  • With CE certification, ensure compliance with EU safety and electromagnetic compatibility standards. Unlike uncertified alternatives in critical gas monitoring systems*

Product details

Smart Modbus Remote Thermal Gas Mass Flow Meter Dn20 Thread Type with RS485 Oxygen CO2 Flow Meter OEM Customizable

The Smart Modbus Remote Thermal Gas Mass Flow Meter is a versatile solution for precise gas and air flow measurement in industrial and HVAC applications. With CE certification and dual RS485/4-20mA outputs, it ensures compliance, remote monitoring, and seamless integration into automated systems.

Technical specifications

FeatureSpecificationBenefit
Accuracy±1.5% of readingWith 1.5% accuracy, you can ensure precise measurements for reliable process control.
CertificationCE CertifiedWith CE certification, you can meet EU safety and performance standards.
ConnectionFlange, ThreadWith flanged/threaded connections, you can adapt to diverse piping systems.
DN SizesDN20, DN25, DN40, DN50, DN65, DN80, DN100, DN200With multiple DN sizes, you can match pipe diameters for optimal flow measurement.
MediumGas, AirWith gas/air compatibility, you can monitor HVAC systems or industrial gas lines.
OutputRS485 (Modbus), 4-20mAWith dual outputs, you can integrate with SCADA or PLC systems for real-time data.
PressureUp to 1.6MPaWith 1.6MPa rating, you can operate safely in moderate-pressure environments.
TypeThermal Gas Mass Flow MeterWith thermal dispersion technology, you can measure mass flow without pressure/temperature compensation.

Customization guide

Adjustable parameters include:

  • DN Sizes: Custom DN options available for non-standard pipe configurations.
  • Output Protocols: Tailor RS485/4-20mA to include HART or wireless protocols for specialized needs.
  • Material: Upgrade to corrosion-resistant alloys for harsh chemical environments.

Get inspired

This flow meter is ideal for applications requiring reliable gas flow measurement, such as industrial gas distribution, HVAC systems, or oxygen/CO₂ monitoring. Its compact design and remote connectivity enable efficient data collection and process optimization.

Choose your model

ParameterBase ModelAdvanced ModelPro Model
Accuracy±1.5%±1.3% (+15%)±1.0% (+30%)
Pressure1.6MPa1.6MPa2.5MPa (+56%)
DN RangeDN20–DN200DN20–DN200DN20–DN250 (+25% max)
CertificationsCECE + IP65CE + IP67 + ATEX

Supplier's note

  1. Technical Breakthroughs:

    • The Pro Model’s ±1.0% accuracy (30% better than Base) enables high-precision applications like gas calibration labs.
    • The Advanced Model’s IP65 rating ensures durability in dusty environments.
    • The Pro Model’s 2.5MPa pressure tolerance supports high-pressure industrial pipelines.
  2. Version Selection Guidance:

    • Base Model: Ideal for standard HVAC or low-pressure gas distribution systems.
    • Advanced Model: Choose for applications needing IP65 protection (e.g., outdoor gas monitoring).
    • Pro Model: Required for hazardous zones (ATEX) or large-scale gas processing plants with DN250 pipelines.

With the Pro version’s triple-certification (CE/IP67/ATEX), you can safely deploy in explosive environments while maintaining 1.0% accuracy. Pair its 2.5MPa rating with DN250 compatibility to handle high-volume gas flows efficiently.

Frequently asked questions

  • Which Smart Modbus Thermal Gas Mass Flow Meter suits DN20 oxygen applications?

  • How to maintain the RS485 Thermal Gas Flow Meter for CO₂ systems?

  • What’s the difference between thermal and differential pressure gas flow meters?

  • Can the Smart Modbus Flow Meter be customized with flange connections?

  • Is the Thermal Gas Mass Flow Meter CE-certified for industrial use?

  • Which output option (RS485 or 4-20mA) suits remote monitoring best?

  • What’s the accuracy of the RS485 Thermal Gas Flow Meter under 1.6MPa pressure?

  • Does the variable area gas flowmeter handle low-flow CO₂ applications?

Product comparison

CategoryUsage ScenariosCharacteristicsAdvantagesDisadvantages
Thermal Mass Flow MeterIndustrial gas measurement (HVAC,化工)Accuracy: 2.0% (Industry) ▲1.5% (Base) ▲1.0% (Advanced)
DN20-200 (ISO 5199)
1.6MPa (API 6D)
RS485/4-20mA (IEC 60529)
High precision for gases, wide DN range, robust pressure handlingHigher cost, requires calibration for complex gases
Variable Area FlowmeterLab/low-pressure monitoring±5% accuracy (ISO 5167)
DN15-50 (ASTM F3129)
Visual float indicator
Low cost, no power needed, easy to readLimited scalability, less accurate for critical processes
Differential Pressure MeterHigh-pressure pipelines (oil/gas)Wide flow range (ISO 5167)
Up to 10MPa (API 6D)
Requires taps/flanges
Cost-effective for high-pressure systems, scalableComplex installation, maintenance-intensive, pressure loss
Coriolis FlowmeterHigh-precision dosing (chemical/pharma)±0.1% accuracy (ISO 19731)
Full mass flow measurement
No moving parts
No calibration needed, mass flow independenceExpensive, bulky, high power consumption
Ultrasonic FlowmeterClean liquid monitoring (water treatment)Non-invasive (ISO 19731)
±1% accuracy
No obstruction
No moving parts, easy installation, no pressure lossPoor performance in gas, costly, requires clean medium
Turbine FlowmeterHigh-flow clean fluids (fuel lines)0.5% accuracy (ISO 5199)
High turndown ratio
Requires clean medium
High flow capacity, good accuracy in clean fluidsSensitive to debris, requires regular maintenance, power-dependent

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