Category: Flow Meters

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Flow Meters

Flow meters are devices used for measuring gasses and liquids in a pipe. Flow meters are referred to by many names, such as flow gauge, flow indicator, liquid meter, flow rate sensor, etc.

Fan Anemometer | FA 430

Fan Anemometer - Overview

This versatile instrument is your comprehensive solution for precise ventilation diagnostics. It is designed to deliver accurate, on-the-spot readings right where they matter most. It instantly measures air speed, temperature, and relative humidity directly at the supply and return vents to ensure system balance. It also has integrated CO₂ monitoring. Quickly pinpoint hidden air leaks within the ductwork or structure to prevent energy loss and optimise system efficiency. It also features integrated volume flow calculation. Direct measurements regardless of vent shape. Pair the device with a cone attachment for precise volume flow at air vents, or a funnel attachment for direct flow rate readings at air nozzles.

Fan Anemometer - Features
- Measurement of air speed, temperature, and humidity at air vents
- Measurement of CO2 at the air vents (Wöhler FA 430 only)
- Detection of air leaks
- Integrated measurement of volume flow
- Direct measurement of volume flow at air vents in combination with the cone
- Direct measurement of flow rate at the air nozzle in combination with a funnel
- Measured values are shown in the Wöhler FA 4xx App
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Multifunction Pressure and Flow Meter | DC410 Flow

Multifunction Pressure and Flow Meter - Overview

This multifunctional handheld instrument is used to measure differential pressure, airflow, air speed and temperature, as well as for the registration of humidity and barometric pressure. It is suitable for use for acceptance measurements at ventilation systems according to DIN EN 12599; 4 PA Pressure Test to confirm the combustion air availability; measurement of the ventilation loss and the surface loss; flow pressure, installation pressure, standing pressure, jet pressure; flow measurement in air and flue gas ducts; and a data logger. It is highly accurate and incorporates "no-drift" technology. It is tested to comply with standards for ventilation for buildings. It has a USB interface to communicate with your PC, or can print directly with the Wöhler TD 600 thermal fast printer. It can be operated with one hand and has a 4-button keypad.

Multifunction Pressure and Flow Meter - Features
- Multi-functional
- Highly accurate
- Technician friendly
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Handheld Flow Anemometer Thermographer | GT8907
Price range: R995.00 through R2,395.00 ex vat
Handheld Flow Anemometer Thermographer - Overview

This multifunctional digital anemometer is a professional instrument for measuring wind speed, temperature, and humidity. It is designed for wind speed measurement in engineering, quality control, and health control. Applications include factories, schools, offices, transportation routes, families, etc.

Handheld Flow Anemometer Thermographer - Features
- Measures current wind speed, temperature and humidity
- Measures current air volume, temperature and humidity
- Measures wind speed/ MAX wind flow/min wind flow
- 2/3 wind flow value/ average value
- Wind speed/flow units and temperature units selection
- Measure wind direction angle
- Real-time measurement when connecting USB with computer software
- Backlight and data holding (HOLD)
- Low battery indication
- Automatic shutdown setting
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Industrial Gas Mixer | FusionFlow IMX

Industrial Gas Mixer - Overview

This high-flow industrial gas mixer is designed for percent‑level, high‑flow applications. The IMX gas mixing platform is ideal for larger, commercial‑scale operations. It creates accurate blends at combined flow rates ranging from 0 – 20 SLPM to 0 – 3200 SLPM. It has real‑time process control and gas delivery options for flow and pressure priorities. It is built for 24/7 operation in the most demanding commercial‑scale and industrial environments. It is housed in a heavy-gauge, 10” x 9” x 10” all‑steel chassis. Our MFCs control consistent, accurate gas mixtures. Individual channels are tuned to provide accurate mixes, outlet pressure control, and rapid responses to changing process conditions.

Industrial Gas Mixer - Features
- Accuracy up to ± 0.6% of targeted mix percentage
- 25 – 125 ms flow control response times (T63)
- Simple 7-button membrane controller, colour TFT display screen
- Blend up to 4 gas streams, using pure/pre‑mixed feed sources
- Support for many corrosive and refrigerant gases
- ASCII RS232 serial communication via proprietary command & control library
- Rear panel connectivity includes integrated EMO switch, optional external EMO input, 24V alarm output, and third‑party analyser analogue input
- 24-hour continuous operation safe
- Built for durability
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Hot Wire Air Velocity Transmitter | FTS140
R2,222.00 ex vat
Hot Wire Air Velocity Transmitter - Overview

FTS140 is a hot wire air velocity transmitter, using the mass flow measuring principle. Using a stable electrical bridge with good accuracy, it has stable performance and low flow sensitivity. It is suitable for use in HVAC air conditioning environment measurements, optimisation and adjustment of system performance, and ventilation control. Duct-type installation is used extensively in environmental engineering projects, buildings and factories making for easy installation.

Hot Wire Air Velocity Transmitter - Features
- Accuracy(+25°C)：±3%F.S.
- Hot wire mass flow transmitter
- IP rating: IP54
- Linear adjustment function
- Switching analogue output by dipswitch
- Offset function by button
- The housing and probe material is PC fire-proof
- Measuring range：0 ... 20 m/s
- Minimum measuring range：0.2 m/s
- Signal：4 ... 20 mA / DC 0 ... 10 V
- ( ILAC / TAF ) Test report
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OEM Air Velocity Transmitter | FTE120
R3,958.00 ex vat
OEM Air Velocity Transmitter - Overview

These compact and lightweight transmitters are easily and quickly installed. It is used for low wind speed measurement. Its polycarbonate housing ensures excellent electrical insulation and flame retardant properties. Widely used in industrial applications such as air handling systems, fume hoods, biological safety cabinets, clean rooms, and laboratories.

OEM Air Velocity Transmitter Features
- RS-485 programmable software: Data logger / Charts
- 4 ... 20 mA / 0 ... 10 V output
- Accuracy: ±2% F.S.
- Small size and lightweight
- Can be mounted quickly and easily
- 0.1 ... 5 m/s, low wind speed measurement
- Polycarbonate housing resulting in great electrical insulation and flame-retardant properties
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Flow Totalizer | DPM04
Price range: R4,152.00 through R4,837.00 ex vat
Flow Totalizer - Overview

The FlowTotalizer is a multifunctional flow monitoring instrument. This product can be used in connection with air or liquid flow transmitters. It can display instantaneous flow measured and calculate cumulative flow over time. The DPM04 can accept common output signals and features RS-485 communication, relay control, and signal retransmission functions. Applications include: monitoring instantaneous flow rates to ensure production process stability; displaying cumulative flow over specific periods for energy management, billing, and cost analysis; and process control or instant alerts to prevent disruptions or equipment damage.

Flow Totalizer - Features
- 2" LCD screen for clear data display
- Instantaneous and cumulative flow monitoring
- Multiple signal options for flexibility
- RS-485 communication for digital integration
- Relay output for process control
https://www.youtube.com/watch?v=2ECrUqmc0uI&t=1s

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Average Flow Measuring Pitot Tube | AFMT
Price range: R4,007.00 through R8,865.00 ex vat
Average Flow Measuring Pitot Tube - Overview

The Average Flow Measuring Pitot Tube is a probe that is placed into the duct to measure flow. This is often used alongside a differential pressure transmitter in flow measurement. The various pressure detecting openings on the AFMT pick up the average flow inside the duct. AFMT then calculates the flow velocity by measuring the difference between dynamic pressure ∆P (total pressure and static pressure) and flow average velocity V. Conversion from data to flow rate happens quickly and accurately. This product is corrosion resistant, heat resistant, dust resistant, and anti-clogging. It is widely used in harsh environments such as exhaust gas emission, vacuuming, and dust wind speed calculation. Also used in ventilation and air-conditioning systems.

Average Flow Measuring Pitot Tube - Features
- Stainless steel housing
- High-temperature resistance and corrosion resistance
- Can measure micro flow rates
- Connected with an eYc Micro Differential Transmitter (PHM33 or PMD33) with a Multi-function display (SD06 or DPM02) this becomes a great solution to measure the dynamic pressure(ΔP) of the airflow in the pipeline and calculate the wind speed, air volume, and temperature
- Applied in harsh environments, exhaust gas emission, environmental protection engineering. The installation location is not limited
- Dust Resistant, Anti-clogging
- Can be customized according to customer needs
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Inline Air Flow Transmitter | FTE120-I
R4,614.00 ex vat
Inline Air Flow Transmitter - Overview

This inline air flow sensor has multiple diameters to choose from and uses an air volume standard calibration system (sonic nozzle) for flow calibration. Suitable for use in pneumatic systems, compressed air systems, and industrial machinery, as well as various industrial and electronic component processing processes. In industrial automation, accurate measurement of airflow is essential. Users can improve resource utilisation whilst saving manufacturing costs if done correctly. Leakage can also be monitored which enables timely repairs and reduced personnel injuries and accident risks. Airflow can also be measured in pneumatic systems to ensure the stability of airflow in the system and ensure normal system operation.

Inline Air Flow Transmitter - Features
- Multiple diameter ( DN10 / DN15 / DN20 / DN25 )
- Optional multiple output : 4 ... 20 mA / 0 ... 10 V / RS-485 / Frequency / Pulse ( Option )
- Accuracy : ±2% F.S. , Operating pressure : Max. 10 bar
- Calibrated by sonic nozzles calibration system
- Easy installation
- Polycarbonate housing, aluminium alloy pipe
- RS-485 programmable software : Data logger / Charts
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Hot Wire Air Velocity Transmitter for Probe Type | FTS07
R2,367.00 ex vat
Hot Wire Air Velocity Transmitter - Overview

The Hot Wire Probe measures heat loss of an electrically-heated wire placed in the air stream. When the Hot Wire Probe is placed in an airstream the heat is transmitted from the wire to the air and the temperature of the wire decreases. Resistance of the wire measures the flow rate of the air. This probe is ideal for use in monitoring the HVAC process, environmental control, and clean rooms, as well as laminar flow control.

Hot Wire Air Velocity Transmitter - Features
- Measuring range : 10 m/s , 20 m/s
- High stability and repeatability
- Smaller tolerance in setting angle
- An economical choice, high C/P ratio
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Industrial Grade High Mass Flow Transmitter | FTM94/95
Price range: R37,101.00 through R56,801.00 ex vat
Industrial Grade High Mass Flow Transmitter - Overview

This industrial-grade thermal mass flow transmitter is housed in a rugged aluminium alloy case, making it suitable for use in a variety of harsh environments. It has a high accuracy level and long-term stability. It comes as either a duct or remote type installation and is easy to install. Suitable for a wide range of pipe diameters. The Thermal Mass Flow transmitter has an LCD Display for air velocity and temperature and has the option to display cumulative flow: m³, L. It can also switch between the following measurements for air velocity and volume: [m/s],[ft/s],[Nm³/h],[Nm/s],[L/min], and [m³/min].

Industrial Grade High Mass Flow Transmitter Features
- IP67 Rugged aluminium alloy case
- Fit for use in a variety of harsh environments
- Easy to install
- High accuracy
- Long-term stability
- Switchable physical quantities: Nm/s, L/min, m³/min (Air velocity & volume), m/s, ft/s, Nm³/h,
- LCD Display of cumulative flow: m³, L (Optional)
- LCD Display of air velocity and temperature
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Venturi Inline Air Flow Transmitter | FDM08
Price range: R20,762.00 through R34,611.00 ex vat
Venturi Inline Air Flow Transmitter - Overview

The Venturi technology provides a more stable and reliable solution for air flow measurement. The unique design ensures more accurate measurement data. It is suitable for use with general gases, vapours, polluted gases, or high-humidity gases. There are no moving or electronic parts inside the pipeline resulting in long-term stability. It uses shorter front and rear straight pipe sections compared to other standard throttling devices (approximately 2.5D in the front and 2D in the rear). It is also designed to minimise pressure loss in the pipeline, reducing fluid kinetic energy loss.

Venturi Inline Air Flow Transmitter - Features
Venturi inline air flow measurement

Wide range of applications

Sensor type: Differential pressure sensor

Air flow measuring range: 200 ... 500 Nm³/h

Output signal: 4 ... 20 mA

Accuracy: ±2%

IP rating: IP65 (Housing)

Precision measurement: Venturi tube

Stable performance

Easy installation

Low pressure loss
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Hot Wire Thermal Flow Switch | FTC05
Price range: R4,916.00 through R5,773.00 ex vat
Hot Wire Thermal Flow Switch - Overview

Based on the thermodynamic principle, this flow switch features two temperature sensors inside the probe: one is for the medium temperature into which it projects, and the other one is heated a few degrees above the medium temperature. When the medium flows, the heat generated in the sensor is diffused by the medium. The difference between these two sensors is used to measure flow rate. It comes in all-metal housing and is suitable for a variety of pipe diameters.

Hot Wire Thermal Flow Switch - Features
- The flow switch is suitable for oil, water, gas, and liquid level detection
- Selectable output: PNP/NPN/Relay
- Metal shell design
- Easy installation
- Measuring rod withstands pressure of 10 bar (length can be customised)
- LED light indicator, simple shape
- Can set the switch point or range
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Flow Switch-Piston Type | FPC04
R1,782.00 ex vat
Flow Switch-Piston Type - Overview

This Piston Flow Switch is a mechanical flow switch used for gases or liquids. It boasts a spring-supported piston and has magnetic triggering of a reed switch. The rugged design makes for a very durable product. Available in plastic or stainless steel.

Flow Switch-Piston Type - Features
- Protection Rating - IP65
- Pressure resistance 100bar (stainless steel)
- Minimal pressure loss
- Good repeatability
- Dirt-resistant
- High switch capability
- Housing: Plastic / Stainless Steel
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Thermal Air Velocity Transmitter Industrial Grade | FTM84-85
Price range: R21,858.00 through R25,211.00 ex vat
Thermal Air Velocity Transmitter - Overview

The Thermal Air Velocity Transmitter is an industrial grade, high-accuracy transmitter which operates at high speed and is quick to respond. It comes housed in a rugged aluminium casing which is IP67 rated and is suitable to be used in various harsh environments. It has an LCD monitor which displays air velocity and temperature.

Thermal Air Velocity Transmitter - Features
- Capable of temperature compensation
- Linear calibration air velocity by computer, analogue output or RS-485(Optional)
- High-speed, high-accuracy measurement, quickly response
- Thermal mass flow sensor
- LCD, display air velocity and temperature
- Switch multifunction physical quantities：[m/s]、[ft/s]、[km/h]、[mph]、[kont]
- DIP SWITCH and RS-485 function
- IP rating: IP67, rugged aluminium case, fit for a variety of harsh environments
- Follow customer needs to plan measuring range, analogue output, stations, and zero-point OFF SET or RS-485 adjustment zero-point OFF SET
- Free programmable software: Data logger / Maximum record 65535 data / Charts
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