Reliable local supply for flow sensing needs
When a project or production line needs accurate liquid or gas flow measurement, long lead times and overseas freight slow you down. Communica keeps a selection of flow sensors, turbine meters, mass-flow modules and insertion probes in South African stock so you can move from prototype to test to installation faster. Our value comes from practical on-the-shelf choices, accessory bundles, and technicians who can advise on integration for education, maker projects or small-scale industrial uses.
What we stock and why it matters
We focus on sensor types that solve the most common local requirements: low-cost Hall-effect turbine flow meters for water experiments, stainless inline meters for liquid transfer, thermal mass-flow sensors for gas monitoring, and compact flow sensors for microfluidics and lab rigs. Popular brand lines and categories are viewable on our Collections page.
Specification callouts to check before you buy
Match sensor electrical and fluid specs with your system to avoid integration delays. Key items: flow range (L/min or mL/min), medium (water, oil, non-corrosive gas), pressure rating, port size, output type (pulse, analog 0-5V/4-20mA, I2C/SPI), and power requirements. When in doubt, request a datasheet or compare models on our flow sensors page to confirm specifications.
Quick spec comparison
Use this short table to narrow choices for common tasks.
| Type | Range | Output | Typical use |
|---|---|---|---|
| Hall-effect turbine | 0.5-60 L/min | Pulse | Water flow experiments, pumps |
| Thermal mass-flow | 0-2000 sccm | Analog / I2C | Gas metering, lab rigs |
| Ultrasonic clamp-on | Variable | Digital/Analog | Non-invasive monitoring |
Compatibility and integration tips
For microcontroller projects, verify whether the sensor outputs a clean digital pulse or requires analog conditioning. For 4-20mA loops, include a shunt resistor sized to your ADC input. Use widely compatible connector types (G1/4, BSP, NPT) or add adapter fittings from our Collections to match pipework. If you need hands-on advice, our branch teams in Samrand and Pretoria can help - check branch hours on our Branches & Trading Hours page.
