Order Timers, Controllers & Sensors Online in South Africa: A Step-by-Step Guide to Checkout, Delivery & Lead Times
Step-by-step guide to ordering timers, controllers, and sensors online in South Africa. Check stock, payment options, delivery times, and lead times with Communica.

Live Stock Visibility
See real availability before you order - no guessing games.
Flexible Delivery & Collection
Courier nationwide or collect from Samrand, Pretoria, or Cape Town.
Clear Lead Times
Know when non-stock items will arrive, so you can plan.
Why Ordering Online Beats Driving Across Town
If you have ever driven to three different stores looking for a specific timer relay or a 0-10V pressure sensor, you already know the frustration. In South Africa, local stock availability can make or break a project deadline. Ordering online from a distributor that holds real inventory - not a drop-ship front - means you can see stock levels, compare specifications, and lock in your order before someone else takes the last unit.
Communica has been supplying makers, students, technicians, and procurement teams since 1977. Our online store mirrors the stock in our Samrand warehouse and branches, with live availability for thousands of SKUs. This guide walks you through the practical side of ordering: how to find the right part, what happens after you click checkout, how delivery works, and what lead times to expect for out-of-stock or backordered items.
Step 1: Find the Exact Timer, Controller, or Sensor You Need
Use Filters and Search Like a Pro
Communica’s Collections page is your starting point. If you already know the category - say, timers or sensors - click through to narrow down. But the fastest route is the search bar: type a part number, a brand name (e.g., Omron, Schneider, Adafruit), or a functional description like “delay on make timer 230V”.
Pay attention to the stock indicator on each product page. “In Stock” means it is on the shelf at Samrand and ready to ship. “Lead Time” or “Backorder” means we need to order it in - usually 2-4 weeks for items from Europe or the USA, sometimes longer for specialised industrial controllers.
Check Compatibility Before You Commit
A common mistake when ordering sensors online is assuming a 4-20mA output will work with a PLC that expects 0-10V. Always open the datasheet (linked on every product page) and confirm:
- Supply voltage and signal type
- Mounting style (DIN rail, panel, PCB)
- Environmental rating if relevant (IP rating, temperature range)
- Pinout or wiring diagram
If you are unsure, the product page often shows related accessories - terminal blocks, cables, power supplies - that other customers bought together. That is a good sanity check.
Step 2: Add to Cart and Review Your Order
Once you have found the right part, add it to your cart. The cart page lets you adjust quantities and see the current availability. If you need 25 pieces and only 10 are in stock, the system will flag it. You can either split the order (10 now, 15 on backorder) or request a quotation for the full quantity with a lead time estimate.
For business buyers, this is also the point to add your VAT number and company details. Communica issues tax invoices, which many procurement departments require for reimbursement.
Pro tip: If you are ordering for a student project, check whether your institution has an existing account. Some universities and TVET colleges have negotiated pricing that can be applied at checkout.
Step 3: Choose Payment and Delivery (or Collection)
Payment Methods Accepted
Communica accepts the usual South African payment options:
- Credit and debit cards (Visa, Mastercard) via a secure gateway
- EFT / bank transfer - funds must reflect before dispatch
- SnapScan and Zapper for mobile payments
- Account payments for approved trade customers (apply via the accounts team)
If you need to pay by company cheque or a purchase order, contact the sales team before placing the order so we can set up your account.
Delivery Options Across South Africa
We ship nationwide through reputable couriers. Delivery is calculated at checkout based on weight, dimensions, and your address. Typical delivery times from dispatch:
| Destination | Courier | Estimated Delivery |
|---|---|---|
| Gauteng (major centres) | The Courier Guy / PostNet | 1-2 business days |
| Cape Town, Durban, PE | The Courier Guy / Aramex | 2-3 business days |
| Outlying areas | Courier with economy service | 3-5 business days |
These are working-day estimates after your order is picked, packed, and handed to the courier. During peak season (November-January) add 1-2 days.
Collect in person: You can choose to collect from our Samrand head office or the Pretoria CBD and Cape Town branches. Collection is free, and you skip courier delays. Check branch trading hours before you drive out - they differ slightly by location.
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Step 4: What Happens After You Click ‘Place Order’
You will receive an automated order confirmation email within minutes. That email is your proof of order, but it does not mean the stock is picked yet. The warehouse team processes orders in the sequence they are received, prioritising paid orders (EFT orders wait for funds to clear).
If any item turns out to be unavailable after our final stock check, a sales representative will contact you with options: wait for the backorder, substitute a similar part, or refund that line item. This happens rarely, but it is worth knowing so you are not caught off guard.
Tracking and Communication
Once dispatched, you will receive a tracking number via email. You can track the parcel on the courier’s website. If you chose collection, you will get a “ready for collection” notification with the branch address and a reference number. Bring your order number and ID when collecting.
Lead Times for Non-Stock Items
Some timers, controllers, and sensors are not kept on the shelf because they are high-value or niche. For those, the product page will indicate an estimated lead time. As a rule of thumb:
- Local South African suppliers: 3-5 business days
- European or UK brands: 2-3 weeks
- US or Asian brands (sea freight): 4-6 weeks
- US or Asian brands (air freight): 2-3 weeks
If your project has a hard deadline, order early or ask for a firm lead time in writing before you pay. Communica’s sales team can often expedite if you flag the urgency.
Troubleshooting Common Online Ordering Issues
Payment Declined but Money Left Your Account
This is usually a temporary authorisation hold, not a completed transaction. It clears automatically within 3-5 business days. If the order did not go through, simply try again or use EFT.
Wrong Part Arrived
Mistakes are rare but possible. Contact us within 7 days of delivery with your order number and a photo of the item and packaging. We will arrange a return and correct shipment. Do not install or modify the part - that voids the return option.
Need a VAT Invoice for Reimbursement
Your order confirmation email includes a tax invoice link. If you need a pro-forma invoice before payment, add the items to your cart and request a quote at checkout - the sales team will email a formal quote with VAT breakdown.
Why Buyers Choose Communica for Online Orders
There are plenty of places to buy electronic components online in South Africa. What sets Communica apart is the combination of real local stock, deep range, and human support. We are not a marketplace - we hold the inventory, we know the products, and we can answer technical questions before you buy. Whether you are a hobbyist ordering a single Arduino sensor or a procurement officer sourcing 500 industrial controllers, the process is the same: transparent stock, clear lead times, and delivery you can plan around.
Ready to start? Browse the full range at Communica online, or explore Shop by Brand to see the manufacturers we stock. Your next project is a few clicks away.
Communica supplies semiconductors and electronic components to industries such as automotive, electrical, automation, mining, and education.
Disclaimer: This content is for educational purposes only. Product availability, pricing, and specifications are subject to change. Always verify current details on the retailer's website before making a purchase. We may earn affiliate commissions from qualifying purchases.
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