Product Overview
The GUF120A-W is a high-precision wall-mounted flow meter based on the ultrasonic time-of-flight principle. It consists of an IP67-rated wall-mounted host unit and various optional IP68-rated sensors, designed for permanent fixed installation.
Its greatest advantage lies in its unparalleled installation flexibility: the host supports wall-mounting, DIN rail integration, or installation in an explosion-proof enclosure; sensors can be flexibly chosen according to your pipe conditions, medium characteristics, and maintenance requirements—Clamp-on (non-invasive, no pipe cutting required), Insertion (hot-tap capable), or Inline (high accuracy). This design allows you to reliably monitor the flow of ultra-pure liquids, chemicals, raw sewage, cooling water, oils, and various other single, homogeneous conductive liquids without interrupting production, covering a vast pipe diameter range from DN15mm to DN6000mm.
Key Features
±1% High Accuracy
Reliable volume flow measurement for single uniform liquids, supporting forward/reverse flow detection.
Non-Invasive Installation
Clamp-on/insertion mounting without pipe cutting or production shutdown, no pressure loss.
Wide Pipe Compatibility
DN15mm~DN6000mm pipe range, compatible with carbon steel/stainless steel/PVC/cement pipes.
Heat/Energy Measurement
Pair with Pt100 temperature sensors (clamp-on/insertion) for heat consumption calculation.
High Protection Level
IP67 (transmitter) & IP68 (sensor), suitable for humid/dusty/outdoor harsh environments.
Optional Data Storage
SD card support for long-term flow data logging (10+ years with 8GB card).
Technical Specifications
| Parameter | Details |
|---|---|
| Measurement Principle | Transit-time ultrasonic |
| Measuring Medium | Water |
| Accuracy | ±1% |
| Flow Rate | 0 ~ ±7 m/s |
| Pipe Diameter | DN32mm ~ DN6000mm |
| Output | 4~20mA, pulse, Relay |
| Protection Level | Transmitter: IP67; Sensor: IP68 |
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Detail Images

Core Applications
Industrial Manufacturing
Cooling water/chemical liquid flow measurement, no production shutdown installation.
Water Treatment
Raw sewage/reclaimed water flow monitoring in municipal/industrial wastewater plants.
Food & Beverage
Alcohol/beer/pure water flow control, non-invasive installation (no contamination).
Urban Water Supply
Tap water distribution pipeline monitoring, daily/monthly consumption recording.
FAQ
The measurement accuracy is ±1%, ensuring reliable data collection for various liquid flow measurements (water, chemical liquid, alcohol, etc.).
It supports pipe diameters from DN15mm to DN6000mm, compatible with carbon steel/stainless steel/cast iron/glass fiber/PVC/cement pipes.
No. The clamp-on/insertion installation method allows mounting without cutting pipes or stopping production, eliminating pressure loss and fluid contamination risks.
Yes. Pair with optional Pt100 temperature sensors (clamp-on/insertion type) to calculate heat/energy consumption accurately for HVAC systems.
Transmitter: IP67 (dust/waterproof); Sensor: IP68 (submersible), suitable for harsh industrial environments (humid/dusty/outdoor).
Optimize Your Flow Measurement Solution
Customize the GUF120A-W ultrasonic flow meter for your industry needs—contact us for personalized configuration and technical support.
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