Introducing the WAFS 108 Compact Air Flow Sensor – your economical choice for precise measurement at consumption points. Effortlessly adaptable, the WAFS 108 excels in measuring a wide range of gases, including nitrogen, without needing extra compensations for air pressure or temperature. Experience high-resolution, rapid, and accurate readings tailored to streamline your end-use monitoring.
The WAFS 108 is a compact flow sensor designed for measuring air consumption at the point where air is actually used. Instead of relying only on readings from the compressor room, it lets maintenance and energy teams see how much air a single machine, workstation or end-use point draws, which makes it easier to spot areas that consume more than expected.
It is an economical choice for plants that want flow data at several points without a large investment at each one. It can measure a wide range of gases, including nitrogen, and it does not need extra compensation for air pressure or temperature. To compare its readings with datasheets or other meters, you can convert compressed air flow units in a few seconds.
The WAFS 108 works on the thermal mass flow principle, so the reading is independent of changes in temperature and pressure. Full digital signal processing, used instead of a traditional analog bridge design, helps the sensor deliver high-resolution, rapid and accurate readings over a wide measuring range, with a 1:100 turndown ratio.
A specially designed flow conditioner supports accurate measurement without adding pressure drop, and the sensor has no moving parts, which keeps the signal stable and suits vibration-prone areas. Its complete stainless steel body adds to long-term reliability. If a line suits a flanged or threaded full-bore installation, the inline type thermal mass flow sensor is another option to consider.
A compact sensor is useful at the end of the distribution network, where individual machines and production stations draw air. Measuring at these points builds a baseline for normal consumption, so a rise in demand without a matching change in production becomes a clear signal to investigate. This kind of machine-level monitoring is common in textile mills, and you can see it in our guide to compressed air monitoring for textile manufacturers.
The WAFS 108 has a standard RS485 Modbus RTU interface, so its data can be passed to a suitable monitoring or control system. It also includes an in-built pressure sensor alongside the flow measurement, which lets you view pressure and flow at the same point.
Use this selector to generate the correct ordering code based on pipe size and options.
The WAFS 108 Compact Air Flow Sensor is suitable for monitoring compressed air and process gases at consumption points across industrial facilities. In Food & Beverage Plants, it can help monitor compressed-air consumption at individual machines and production areas, while its ability to measure gases such as nitrogen, carbon dioxide and oxygen makes it suitable for selected process-gas monitoring applications.
In Pharmaceutical Plants, the WAFS 108 can be used for point-of-use gas consumption measurement and monitoring of suitable compressed-air and process-gas lines. Its compact design, integrated pressure measurement, wide 1:100 turndown ratio and RS485 Modbus RTU communication make it suitable for continuous monitoring where engineers need reliable flow and consumption data.
| Flow Range | 0.1 to 52 SCFM |
|---|---|
| Accuracy | ±(1.5% reading + 0.3% full scale) |
| Available Sizes | DN 15, DN 20, DN 25, DN 40, DN 50 |
| Reference Condition | 20°C, 1 bar(a) -ISO 1217 |
| Analog | On Request |
|---|---|
| Digital (Standard) | RS485, Modbus RTU Portocol |
| Connector | 2 x 5 – Pin M12 (Female) |
| Input | 18…30V / 5W |
|---|
| Display | Analog |
|---|
| Operating Temperature | -30°C…+70°C |
|---|---|
| Medium Temperature | -40°C…+150°C |
| Operating Pressure | 0…1.6 MPa |
| Body Material | Stainless Steel |
|---|---|
| EMC | According to IEC 61326-1 |
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Send us your line size, operating pressure and flow range and a WiseAir application engineer will confirm the right model, the delivery time and the price. We manufacture in India, so lead times are weeks rather than months.
Prefer to talk? Call +91 90477 78715 or +91 98944 49015. Not sure it is the right instrument? A compressed air audit tells you what to measure and where. Or start with our free compressed air calculators.
# 12 Sri Venkatalakshmi Nagar, Singanallur,
Coimbatore – 641005 India.
WiseAir Technologies India LLP is part of the Systel Asia group — specialists in compressed air management and smart monitoring solutions across Asia since 2002.
© Copyright 2026. WiseAir Technologies India LLP
Send us your line size, operating pressure and flow range and a WiseAir application engineer will confirm the right model, the delivery time and the price. We manufacture in India, so lead times are weeks rather than months.
Prefer to talk? Call +91 90477 78715 or +91 98944 49015. Not sure it is the right instrument? A compressed air audit tells you what to measure and where. Or start with our free compressed air calculators.
