Sensors, switches and control components
The small parts that stop a line when they fail. We source sensors, switches, relays and control components so your automation stays accurate and safe.
Request a quote: Sensors & control components
Tell us what you need. An engineer replies with availability, lead time and price.
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What we source

- Inductive, capacitive and photoelectric sensors
- Limit and safety switches
- Control and safety relays
- Timers and counters
- Pressure and temperature instruments
How we handle sensors & control components requests
Match the sensing detail
Sensing range, output type, supply voltage and connector all matter. A model number or a photo of the old sensor is usually enough for us to confirm the match.
Safety components
For safety-rated parts we confirm the exact part number against your system so nothing is substituted by guesswork.
About sensors & control components from Precision Spares
Industrial sensors and control components are the nervous system of any automated plant, detecting position, presence, pressure, temperature and flow to keep processes running safely and accurately. When a single proximity sensor or limit switch fails on a production line, the result is often a complete stoppage that costs far more than the component itself. We source a comprehensive range of sensors and control components for South African plants, helping maintenance teams keep these critical parts in stock and respond quickly when failures occur.
Selecting the correct sensor or control component requires attention to detail that goes beyond the part number. For proximity sensors, the sensing range, output type (PNP or NPN), supply voltage and connector style must all match the application and existing cabling. Safety-rated components — including safety switches, safety relays and safety mats — must be matched exactly to the safety integrity level of the system, with no room for substitution. Our engineers work from your model number, datasheet or a clear photo of the existing component to confirm the correct match before you order.
We hold common sensors and switches in local stock for rapid courier delivery, and can source less common instruments including pressure transmitters, temperature sensors and flow measurement devices for process applications. For plants running multi-brand automation environments, we can supply components from different manufacturers that integrate with your existing control system. Whether you need a single emergency sensor to get a line running again or a planned list of components for a shutdown, send us the details and we will respond with availability and pricing for delivery anywhere in South Africa.
Common questions
Can I send a photo of a sensor with no visible part number?
Yes. Send what you have along with the machine or panel it came from and we will work from there.
What types of sensors do you supply most often?
Inductive and capacitive proximity sensors, photoelectric sensors, limit switches, and pressure and temperature instruments.
How do I specify a proximity sensor correctly?
Sensing range, output type (PNP or NPN), supply voltage and connector style are the key details. The model number on the sensor body is best.
Can you supply safety-rated components?
Yes. For safety switches, safety relays and safety mats we confirm the exact part number against your system so nothing is substituted by guesswork.
What is the difference between a sensor and a limit switch?
A sensor detects presence without physical contact, while a limit switch is triggered by mechanical movement. Tell us the application and we will advise.
Do you supply relays and timers as well?
Yes. Control relays, interface relays, timers and counters are part of our regular control component range.
Can you match a sensor with an M12 connector to my existing cabling?
Yes. Connector type, pinout and cable length all matter. Send the details or a photo and we will confirm the match.
What voltage do industrial sensors usually run on?
Most run on 24 V DC, though some instruments use other supplies. The sensor label or datasheet will tell you, or send it to us to check.
How fast can you get sensors delivered?
Common sensors and switches are often in stock and can be couriered quickly. We confirm availability when you request a quote.
Can you supply instruments for pressure and temperature measurement?
Yes. We source pressure transmitters, temperature sensors and related instruments for industrial applications.
Do you help with sensor selection for a new application?
Yes. Tell us what you are detecting, the environment and the control system and we will recommend suitable options.
Ready to request a quote?
Send the part number or a photo of the nameplate for sensors & control components. An engineer replies with availability, source, condition and lead time.
Request a quote: Sensors & control components
Tell us what you need. An engineer replies with availability, lead time and price.
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Need it urgently?
Call or WhatsApp the nameplate. Every day, 07:00 to 17:00. Part discontinued? How we source obsolete parts.
