MEMS Digital Gas Flow Meter – Thermal Mass Flow Sensor with RS485 & Battery
Compact MEMS-based gas flow meter delivering stable, low-flow mass measurement without moving parts. Ideal for compressed air, laboratory gases, and industrial monitoring with RS485 integration and low-power operation.
This MEMS digital gas flow meter utilises advanced thermal mass flow sensing technology to provide accurate and stable gas flow measurement without the need for mechanical floats or moving components.
Unlike traditional rotameters, this unit offers solid-state measurement, reducing wear, improving repeatability, and enabling reliable operation across low-flow and variable gas conditions. This makes it well suited to applications such as compressed air monitoring, laboratory gas systems, and industrial process control.
The integrated backlit LCD display provides clear real-time indication of flow values, supporting commissioning, diagnostics, and routine monitoring directly at the installation point.
For system integration, the meter features RS485 communication (Modbus protocol), allowing seamless connection to:
- PLC systems
- SCADA platforms
- RTUs and telemetry systems
- Data loggers and IIoT platforms
Designed for flexibility, the unit supports a wide DC input range (3.6–24VDC) and can also operate using a 3.6V lithium battery, making it suitable for low-power, remote, or standalone monitoring applications.
With compact inline installation and digital output capability, this meter is ideal for distributed sensing, energy monitoring, and smart industrial systems.
Key Features
- MEMS thermal mass flow sensing (no moving parts)
- Stable and repeatable gas flow measurement
- Suitable for low-flow and precision applications
- Backlit LCD for local display and diagnostics
- RS485 (Modbus RTU) for industrial integration
- Wide power range: 3.6–24VDC
- Optional lithium battery operation for remote use
- Compact inline installation
- Low maintenance and long service life
Applications
- Compressed air monitoring systems
- Laboratory gas measurement
- Industrial gas flow monitoring
- Process control and automation
- Energy usage monitoring
- Remote and low-power installations
- OEM and embedded system integration