Knightsbridge Multimeter Review
Knightsbridge multimeters offer a strong balance of safety ratings, build quality, and value for electricians and serious DIYers. This review breaks down the key models, specs, and real-world reliability based on published data and owner feedback.
Quick answer
The Knightsbridge 10A TRMS Digital Multimeter (KNM10A) is the best overall pick for its CAT III 600V safety rating, true RMS accuracy, and robust housing. For budget-conscious buyers, the Knightsbridge KBM60 provides essential functions at a lower cost without compromising basic safety standards.
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Research updated June 2026.
Knightsbridge KNM10A TRMS Digital Multimeter
CAT III 600V rated with true RMS for accurate AC/DC readings.
Pros
- True RMS for non-sinusoidal waveforms
- CAT III 600V safety rating
- Large backlit LCD display
- Auto-ranging with manual override
- Includes thermocouple for temperature
Cons
- No CAT IV rating for high-energy industrial
- Test leads are stiff out of the box
Who Is the Knightsbridge Multimeter For?
The Knightsbridge multimeter range is designed for electricians, maintenance technicians, and advanced DIY users who need reliable measurements for residential and light commercial electrical work. The KNM10A model, with its CAT III 600V rating, is suitable for distribution board testing, appliance repair, and automotive diagnostics. The KBM60 is a more basic option for hobbyists and occasional use where high accuracy is not critical.
Performance and Accuracy
The KNM10A uses true RMS (Root Mean Square) technology, which means it accurately measures AC voltage and current even when the waveform is distorted by electronic loads like variable speed drives or LED drivers. Published accuracy for DC voltage is +/-0.5% with a resolution of 0.1mV. AC voltage accuracy is +/-0.8%. Owner reviews on major retail sites consistently report that readings match those of Fluke meters within the expected tolerance for this price bracket.
The KBM60 is a basic average-responding meter, which is fine for pure sine wave AC circuits but will show errors on distorted waveforms. Its DC voltage accuracy is +/-0.8%, adequate for battery checks and simple continuity testing. Both models include a continuity buzzer that responds quickly, a diode test function, and a capacitance measurement mode on the KNM10A.
Build Quality and Safety
Knightsbridge meters feature a double-molded rubber holster that provides drop protection from 2 meters. The input jacks are recessed to prevent accidental probe contact. The KNM10A is rated CAT III 600V, meaning it is safe to use on fixed-installation circuits like sub-distribution boards. It also has a 10A fused current input with a ceramic high-energy fuse. The KBM60 is rated CAT II 600V, suitable for outlet and appliance testing but not for high-energy circuits. Owner feedback on the rotary switch is positive, with users noting positive detents and no skipping after extended use.
Alternatives to Consider
If you need a CAT IV 600V rating for industrial or utility-level work, the Fluke 117 is a strong alternative with a higher price point. For a budget-friendly true RMS option, the Klein Tools MM400 offers similar specs to the KNM10A with a slightly smaller display. The Sealey MM12 is another UK-market competitor with comparable features and a robust warranty.
FAQs
Is the Knightsbridge multimeter safe for mains voltage testing?
Yes, the KNM10A is CAT III 600V rated and safe for testing 120V and 240V mains circuits in residential and commercial settings.
Does the Knightsbridge multimeter measure temperature?
Yes, the KNM10A comes with a K-type thermocouple probe and can measure temperature from -20°C to 1000°C.
What is the difference between KNM10A and KBM60?
The KNM10A has true RMS, CAT III safety, and temperature measurement, while the KBM60 is a basic average-responding meter with CAT II rating.
Can I use a Knightsbridge multimeter for automotive diagnostics?
Yes, both models measure DC voltage, resistance, and continuity, making them suitable for battery, sensor, and fuse testing in vehicles.
Does the meter come with a case?
The KNM10A includes a soft carry case and test leads; the KBM60 comes with a basic pouch and leads.
Is the backlight adjustable?
The backlight on the KNM10A is a single brightness setting activated by a dedicated button; it stays on for 30 seconds.
What batteries does the Knightsbridge multimeter use?
Both models use a standard 9V battery, which is included in the box.
How accurate is the capacitance measurement?
The KNM10A measures capacitance from 10nF to 100µF with an accuracy of +/-3% for most ranges.
Can the meter measure frequency?
Yes, the KNM10A has a frequency measurement function up to 10MHz with a dedicated input range.
Is there a warranty on Knightsbridge multimeters?
Knightsbridge offers a 2-year warranty against manufacturing defects on their multimeters.
Our verdict
The Knightsbridge KNM10A TRMS Digital Multimeter is the best overall choice for its combination of CAT III safety, true RMS accuracy, and temperature measurement at a competitive price. For basic tasks like battery checking and continuity testing, the KBM60 offers a reliable budget option without unnecessary features.