Multimeters

Key Features to Consider

• Voltage and current range – ensure the model supports your application (e.g. up to 600V for home electrics, 10A+ for automotive)

• Display type – large digital displays with backlighting improve readability

• Continuity buzzer – makes it easier to test for breaks in circuits

• Diode and battery testing – handy for electronics and automotive diagnostics

• Data hold function – freezes the reading on screen for convenience

• Safety rating (CAT II, CAT III, CAT IV) – higher categories offer better protection in high-energy environments

Subcategory Breakdown

DIY and Home Multimeters

Affordable, simple units with basic voltage, resistance, and continuity testing — perfect for household electrics and small electronics.

Automotive Multimeters

Designed for 12V systems with battery, alternator, and fuse testing functions — suitable for mechanics and vehicle owners.

Electrician-Grade Multimeters

Feature True RMS, CAT III/IV safety ratings, and robust build quality for professional trade work.

Clamp Multimeters

Allow non-contact current measurement by clamping around a live wire — especially useful in distribution boards or vehicle wiring.

Expert Tips

• Use an auto-ranging multimeter if you’re a beginner — it reduces setup time and user error

• Always test the multimeter on a known voltage source before use to ensure accuracy

• Set the range higher than expected if using a manual-ranging model

• Check the safety category (CAT rating) for industrial or mains work — CAT III or IV is recommended

• Replace test leads every few years, especially in high-use environments

Common Mistakes to Avoid

• ❌ Measuring current in voltage mode — can damage the multimeter

• ❌ Using a low CAT-rated multimeter on mains installations

• ❌ Probing live circuits without properly set range or function

• ❌ Failing to zero the resistance range before continuity checks

• ❌ Holding the test leads incorrectly — use one hand when possible to reduce shock risk

Bestselling Multimeters

1. Fluke 115 Digital Multimeter – True RMS, CAT III 600V, professional-grade accuracy

2. Sealey MM20 Auto-Ranging Multimeter – Great for general use with clear LCD and data hold

3. UNI-T UT210E Clamp Meter – Compact and ideal for current measurement without breaking the circuit

4. KAIWEETS HT118A Multimeter – Backlit, with NCV (non-contact voltage), great for home and workshop

5. Draper Expert Automotive Multimeter – Designed for 12V systems with alternator and battery testing

6. RS PRO Manual Multimeter – Budget-friendly, robust build, suitable for DIY tasks

7. Amprobe AM-510-EUR Multimeter – Mid-range multimeter for electricians with AC/DC voltage, resistance, and frequency measurement

Multimeters – FAQs

1. What is a multimeter used for?
A multimeter is used to measure electrical values like voltage, current, resistance, and continuity in circuits and devices.

2. What’s the difference between auto-ranging and manual-ranging multimeters?
Auto-ranging models automatically select the correct scale. Manual-ranging models require you to choose the scale yourself.

3. Can I use a multimeter to test a car battery?
Yes — set the multimeter to DC voltage, and a healthy 12V battery should read between 12.4V and 12.7V at rest.

4. What is True RMS?
True RMS multimeters provide accurate readings on non-linear loads, such as those with variable frequency drives or electronic ballasts.

5. Are digital or analogue multimeters better?
Digital models are more accurate and easier to use, while analogue versions are useful for observing fluctuating values.

6. What safety category should I choose?
Use CAT II for low-voltage appliances, CAT III for mains and distribution boards, and CAT IV for high-energy industrial use.

7. Can I measure AC current with a standard multimeter?
Yes, but most models require you to break the circuit. A clamp meter allows non-contact current measurement.

8. Do I need a special multimeter for automotive work?
Not necessarily, but a model with battery testing, 12V DC range, and continuity mode is highly recommended.

9. How do I test a fuse with a multimeter?
Use the continuity function. A good fuse will produce a beep or low resistance; a blown fuse will show no continuity.

10. How do I know if my multimeter is accurate?
Test it on a known voltage source (like a new 9V battery or mains socket) and compare the reading to the expected value.

Final Thoughts

Multimeters are essential tools for anyone working with electricity — from home repairs and vehicle diagnostics to professional electrical work. Whether you’re testing voltage, checking fuses, or diagnosing faults, the right multimeter will save time, prevent mistakes, and keep you safe. With over 35 years of expertise in tools and diagnostics, we supply only trusted multimeters from leading brands to help you measure with confidence.

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