Digital Multimeters
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£46.80 £39.00
- Entry-level meter in Extech's EX400 series - ideal for all basic measurements
- Measures AC/DC voltage and current, resistance, diode, continuity and temperature
- Large-size, backlit LCD display
39 Reward PointsPrice Match GuaranteeEX410 -
£66.00 £55.00
- High accuracy, true RMS handheld digital multimeter
- Measure voltage, capacitance, current, diode, resistance and more
- Data hold and MAX/MIN functions
55 Reward PointsPrice Match GuaranteeEX350 -
£78.00 £65.00
- True RMS accuracy when testing AC
- Tests voltage, current, resistance, temperature, continuity, diode and more
- Built-in non-contact voltage detector
65 Reward PointsPrice Match GuaranteeEX355 -
£81.60 £68.00
- 11 functions in one!
- Measure AC/DC voltage, AC/DC current, capacitance, duty cycle and much more
- True RMS ensures reliable, accurate results
68 Reward PointsPrice Match GuaranteeEX430 -
£83.94 £69.95
- Double moulded casing for water protection
- 10 measuring functions
- Handy accessories included
69 Reward PointsPrice Match GuaranteeEX503 -
£110.40 £92.00
- Extremely durable - waterproof and drop-proof
- 11 different testing functions
- High accuracy
92 Reward PointsPrice Match GuaranteeEX505 -
£146.40 £122.00
- Includes EX505 multimeter, DV25 dual range AC Voltage Detector and TL808 test lead kit.
- Comes with carrying case
- Conforms to CAT III and IV safety ratings
122 Reward PointsPrice Match GuaranteeEX505-K -
£298.80 £249.00
- Datalogger stores up to 256,000 readings
- Alligator clips and test leads included
- Comes with Windows software for analysing results
249 Reward PointsPrice Match GuaranteeDL160
About Digital Multimeters
While traditional multimeters have used analogue displays which involved a needle moving across a scale, they're generally waning in popularity compared to digital multimeters (DMM).
Digital multimeters offer several advantages over their analogue counterparts. They're generally much more varied in the number of different parameters they can measure, have built-in advanced features and generate numerical value results which are much more accurate than tracking parameter fluctuations on an analogue scale.
The most basic digital multimeters generally are used for measuring voltage, current, and resistance levels. Upgraded DMMs often contain additional measurement capabilities, and can be used to test such things as temperature or capacitance. Electrical professionals often find their multimeter is the one tool they turn to the most, simply because of the versatility of the device and its ability to be used in a wide variety of different electrical applications.
Most digital variety multimeters are also encased in incredibly small bodies - many of them are even pocket-sized, and can still be used for carrying out measurements of electrical and other properties. They're also generally brimming with advanced features such as autoranging, data hold, and MAX/MIN measurements.
Autoranging digital multimeters are much safer than manual ranging devices. Each multimeter - depending on the make and model - will have an integrated range built into the device. This means that the DMM is capable of measuring up to the upper threshold of that range, but once a manual ranging multimeter passes this threshold, it will display 'OL', which means it has exceeded its capabilities. Autoranging multimeters are made to automatically adjust their range to the targeted application, and even when they move outside a range they will automatically adjust themselves to make sure that the user still gets a numerical reading. It is important to consider exactly whether an autoranging or manual ranging device applies to your needs when buying a multimeter - manual ranging multimeters may not have the ability to adjust their range automatically, but they are more efficient at stopping ghost voltage readings.
A common DMM generally consists of an LCD screen encased into a tester that features a rotary dial on the front. Users use this rotary dial to select between different test procedures and features, and the results are relayed automatically to the LCD screen when taken. Using either internal data storage or a data hold mode it's possible to either permanently store this data (and download it later to a PC using various connections) or hold data on screen temporarily while it is jotted down or shown to someone else. Most digital multimeters also feature ports for test leads, and many also ship as standard which is applicable to test leads for carrying out the tests that a particular digital multimeter can perform.