S421 Flow and Consumption Meter for Compressed Air and Gases (In-line Sensor)

Measure Compressed Air Faster, With Unmatched Precision!

Introducing the S421 Flow and Consumption Meter, the ultimate high-precision airflow sensor designed to seamlessly integrate into your compressed air and gas systems. With a wide measuring range and lightning-fast response times, this innovative solution delivers unrivalled accuracy and efficiency. Equipped with dual calibration curves for versatility across different gases – such as compressed air and nitrogen – the S421 is built for precision and long-term durability with an IP65 protection rating. Plus, our free mobile app lets you manage settings effortlessly in real time. Elevate your operational efficiency with the S421 and experience state-of-the-art compressed air measurement today.

Why Choose the S421 Flow and Consumption Meter?

Key Advantages / Main Benefits

Unparalleled Precision: Achieve exceptional accuracy in measuring compressed air flow and consumption – even at high flow rates.
Versatile Calibration: Switch seamlessly between gases like air and nitrogen without sacrificing measurement integrity.
Rugged Reliability: Built to thrive in harsh industrial environments, thanks to its durable design and IP65 protection.
Easy Integration: An in-line sensor format ensures straightforward installation into most existing systems.
Mobile App Control: Configure settings wirelessly using our free smartphone app, enabling on-the-fly adjustments.

S421 Dimensions (Flange Type)

S421 Dimensions (Thread Type)

Precision Measurement

Attain unmatched measurement accuracy for optimal efficiency and custom flow ranges, with a measuring section designed for seamless integration.

Dual Gas Calibration

Effortlessly switch between two gases (e.g., compressed air and nitrogen) without needing recalibration – perfect for dynamic industrial requirements.

Digital Interface

Access all your data with ease through a clear digital interface, ensuring straightforward monitoring and control.

Ease of Setup

Enjoy a flexible installation process tailored to your system requirements, reducing downtime and complexity.

Fast Response Times

Stay instantly updated on changes to your system’s status, thanks to the high sampling rate and rapid data refresh.

Versatile Output Options

Diversify your data communication with isolated analogue, pulse outputs, or MODBUS RTU interface.

Mobile App Management

Manage and customise settings from your smartphone or tablet, allowing real-time adjustments wherever you are.

Enhanced Protection

The IP65 rating ensures top-tier resistance to dust and moisture, extending device lifespan.

Energy Efficiency

Precisely track air flow and consumption to detect leaks, minimise waste, and slash energy costs.

Future-proof Technology

Stay adaptable with an exchangeable sensor unit designed to keep pace with evolving technological demands.

Comprehensive Data Visibility

Monitor velocity, flow rate, and temperature in one streamlined view for complete operational insight.

Compact, In-line Design

Conserve valuable floor space without compromising on performance, thanks to the meter’s small footprint.

Optional Flow Conditioner

Eliminate the need for a long straight inlet run, making system design more flexible and efficient.

Long-term Durability

Rely on robust sensor construction for dependable performance and reduced maintenance demands.

Easy Pre-Configuration

Receive your meter pre-set according to your system’s specifications, allowing you to plug and play with minimal hassle.

Broad Compatibility

Adapt seamlessly to different pipe sizes (e.g., DN15 to DN80), ensuring hassle-free integration.

Remote Configuration

Adjust your meter settings from anywhere using wireless connectivity, reducing the need for on-site intervention.

Competitive Pricing

Invest in high-performance capabilities at a cost-effective price, maximising your return on investment.

The S421 Flow and Consumption Meter is the perfect blend of high-precision technology, rugged durability, and versatile configuration options for compressed air and gas measurement. Whether you need to optimise energy usage, reduce costs, or gain deeper insights into your processes, this in-line sensor has you covered.

Is it difficult to set up and integrate into my existing system?
No. The S421 is designed for easy, flexible installation that fits various setups, ensuring a smooth integration process.

How does the S421 handle temperature variations?
Its thermal mass flow measurement technology ensures consistent accuracy despite temperature fluctuations, delivering reliable data at all times.

Will this solution fit my current pipe sizes?
Absolutely. The S421 supports a wide range of pipe sizes—from DN15 up to DN80—allowing easy adaptation to different system setups.

Can this device withstand harsh industrial conditions?
Yes. With an IP65 rating, the S421 is built to endure dust, moisture, and other challenging industrial environments.

Is it possible to switch gases without recalibration issues?
Definitely. Dual gas calibration means you can switch between two gases with no loss of accuracy or repeated calibration steps.

What if I want to change settings remotely?
You can configure your device via our free mobile app, which allows you to adjust settings and monitor readings from anywhere.

Are there versatile data communication options available?
Yes. Choose from isolated analogue outputs, pulse outputs, or MODBUS RTU for seamless data transfer and integration.

Can I access real-time data easily?
Certainly. Real-time monitoring is built in, providing continuous flow, velocity, and temperature readings—plus optional flanged connections.

Do I need a straight inlet for accurate measurements?
No. With our optional flow conditioner, straight inlet requirements are eliminated, simplifying your overall system design.

Is this a cost-effective solution?
Yes. The S421 delivers top-notch performance at a competitive price, making it a worthwhile investment for any industrial setup.

Contact us today to learn more about how the S421 can revolutionise your compressed air and gas monitoring—so you can focus on what truly matters: efficiency, reliability, and sustained operational success.