How do I choose between a bench multimeter and a handheld multimeter?

Choose based on use case: bench multimeters offer higher accuracy, better resolution, data logging and stable power for lab work, while handheld units prioritise portability, ruggedness and battery operation for field tasks. Compare specifications such as accuracy (ppm or %), input impedance, range coverage, sample/update rate and safety (CAT) ratings on the datasheet before buying.

Are Communica test instruments supplied calibrated or with calibration options?

Calibration status varies by product and manufacturer — check the individual product page or datasheet for supplied calibration information. If you require local calibration or a traceable certificate, contact Communica sales for recommended local calibration services and lead-time information.

What probes and accessories do I need for measuring high-frequency signals with an oscilloscope?

Use probes with bandwidth ratings equal to or greater than the oscilloscope bandwidth (typically 3–5× the highest signal frequency), low capacitance and proper impedance (e.g., 1 M? for passive, 50 ? for high-speed). Also use properly compensated probes, short ground leads or grounding accessories, and coaxial cables or differential probes for high-speed or floating measurements to reduce noise and ringing.

What safety checks should I perform before measuring mains or high-voltage circuits?

Verify the instrument and probe voltage/CAT ratings on the product label or datasheet and use leads, probes and fuses rated for the expected voltages and fault conditions. Work with the circuit de-energised when possible, use appropriate PPE and isolation techniques, and ensure a competent person supervises measurements on hazardous systems.

How can I check stock, collect orders from a branch, and get a VAT invoice for institutional purchases?

Check stock and estimated lead times on the product page or contact Communica sales for bulk or education enquiries; branches include Samrand (head office), Pretoria CBD and Cape Town with additional sub-distributors. You can select branch collection at checkout or arrange collection with sales, and request a VAT invoice at purchase or on collection by providing the required business or institutional details.

Calibration Equipment Supplier - Local Test & Measurement Solutions

Name: Communica
Telephone: 0126573500

Find bench calibrators, temperature reference tools and pressure indicators in local stock. Technical selection help, VAT invoices and branch pickup from Communica.

Published:June 3, 2026

4 min read

Image supplied by 123RF

Local stock & fast pickup

Reduce downtime with Samrand and branch collection for urgent calibrations.

Specification-led selection

Compare accuracy, range and interfaces to match lab requirements precisely.

Procurement-friendly service

VAT invoices, account quotes and accessory bundles for institutional buyers.

Calibration Equipment Supplier You Can Count On

Communica offers a practical, locally focused route to the calibration instruments your team needs - from multimeter calibrators and precision DC sources to temperature baths and pressure standards. Our emphasis is availability, fast branch collection, clear VAT invoicing and technical guidance so your lab or workshop stays productive with minimal lead time.

Why local stock matters for calibration

When calibrations are scheduled, delays cost downtime and compliance headaches. Having accessible stock in Samrand or one of our branches reduces lead times compared with overseas ordering. We maintain a broad range of measurement references and accessories so technicians can repair or replace key items without waiting weeks - especially useful for tertiary labs, R&D benches and field service teams.

Core product groups and typical use cases

Below are the calibration categories where we hold stock and provide practical advice:

Electrical: multifunction calibrators, precision DC sources, and reference multimeters for lab and on-site verification.
Temperature: dry-block calibrators, precision thermometers and temperature baths for sensor calibration and HVAC checks.
Pressure & flow: hand pumps, deadweight testers and digital pressure indicators for process instrumentation.
Mass & dimensional: weights and gauge blocks for workshop verification and educational labs.

Specification callouts - pick the right class of instrument

Focus on three measurable specs when choosing equipment: accuracy (or uncertainty), stability/long-term drift, and range. For example, a bench DC calibrator for current and voltage should list both output range and stated uncertainty at specific points. Use this checklist when comparing models: stated accuracy, calibration interval, output resolution, interface (GPIB/USB/Ethernet), and supported standards.

Comparison table - typical choices

Type	Best for	Typical spec to check
Multifunction Calibrator	Electronics labs, service benches	Voltage/current accuracy, source modes
Temperature Dry-Block	Sensor and probe calibration	Stability, uniformity over block
Digital Pressure Indicator	Process instrumentation	Pressure range, repeatability

For detailed product browsing see our Collections and the full All Products index.

Accessories and compatibility guidance

Replaceable probes, calibration leads, and certified weights are often the items that determine how quickly a unit can return to service. When ordering, consider accessory bundles (probe kits, traceable test leads, transport cases) to avoid multiple shipments. If a calibrator lists RS-232 or LAN control, check that your lab software supports that protocol - we can advise on compatibility during the quote process.

Branch pickup, quotes and institutional purchasing

We support VAT invoicing and account quotes for procurement teams. Collect from Samrand or our Pretoria and Cape Town branches to remove courier delays; branch hours and locations are listed on our Branches & Trading Hours page.

Quick action prompts

Ready to compare specifications? Use our product index to Shop by Brand or check current stock on the homepage before requesting a quote.

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Decision factor	Short test
Accuracy need	Compare stated uncertainty at your operating point
Uptime	Check local availability and spare lead times
Integration	Confirm communication interfaces and drivers

Calibration Equipment Supplier - Local Test & Measurement Solutions

Local stock & fast pickup

Specification-led selection

Procurement-friendly service

Calibration Equipment Supplier You Can Count On

Why local stock matters for calibration

Core product groups and typical use cases

Specification callouts - pick the right class of instrument

Comparison table - typical choices

Accessories and compatibility guidance

Branch pickup, quotes and institutional purchasing

Quick action prompts

Related Test & Measurement Products

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Practical buying advice and objections handled

Case example - university electronics lab

Service notes, troubleshooting and maintenance tips

Specification matrix for fast decisions

Final summary - why order through Communica

Uni-t Ut261b Handheld Battery Powered Phase Sequence And Motor Rotation Indicator

Toptronics T855 - Open Phase Rotation Indicator

Toptronics T887 3-phase Presence Rotation Indicator

Major Tech Mt930 Phase Rotation Meter - Lcd Display, 3-phase Indication, Clock Or Anti Clock

Major Tech Mt990 Portable Current Loop Calibrator

Fluke 705 Volt/ma Loop Calibrator For Electrical Testing Tools

Fluke 707 Current Loop Calibrator 24ma

Uni-t Ut261a - Phase Sequence & Motor Rotation Indicator

Fluke 9040 Phase Rotation Indicator - Lcd Display - Voltage Up To 700v - Suitable For Industrial And Commercial Use

Fluke 715 Volt/ma Loop Calibrator – Compact And Reliable Testing Tool

Toptronics T890 Non-contact 3-phase Detector

Communica South Africa

Frequently Asked Questions

How do I choose between a bench multimeter and a handheld multimeter?

How do I choose between a bench multimeter and a handheld multimeter?

Are Communica test instruments supplied calibrated or with calibration options?

Are Communica test instruments supplied calibrated or with calibration options?

What probes and accessories do I need for measuring high-frequency signals with an oscilloscope?

What probes and accessories do I need for measuring high-frequency signals with an oscilloscope?

What safety checks should I perform before measuring mains or high-voltage circuits?

What safety checks should I perform before measuring mains or high-voltage circuits?

How can I check stock, collect orders from a branch, and get a VAT invoice for institutional purchases?

How can I check stock, collect orders from a branch, and get a VAT invoice for institutional purchases?

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