Digital Multimeters

  1. Extech EX310 Mini Digital Multimeter
    Extech logo
    Lead Time: 1-2 Weeks
    Extech EX310 Mini Digital Multimeter
    (no reviews)
    £34.74 £28.95
    • Measure AC/DC voltage, AC/DC current, resistance and continuity/diode
    • Built-in voltage detector
    • Ideal for basic electrical applications
    28 Reward Points
    Price Match Guarantee
    EX310
  2. Extech 381676A Pen DMM with Non Contact Voltage Detector
    Extech logo
    Lead Time: 1-2 Weeks
    Extech 381676A Pen DMM with Non Contact Voltage Detector
    (3)
    £34.74 £28.95
    • Pen style – easily fits in your pocket
    • Performs six measuring functions
    • Suits a whole range of uses
    28 Reward Points
    Price Match Guarantee
    381676
  3. Extech DM220 Mini Pocket Multimeter
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    Extech DM220 Mini Pocket Multimeter
    (no reviews)
    £46.55 £38.79
    • Built in non-contact voltage detector and torch
    • Pocket-sized design
    • Test voltage, current, resistance, frequency, capacitance and more
    38 Reward Points
    Price Match Guarantee
    DM220
  4. Extech EX410A 8 Function Professional Digital Multimeter
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    Only 1 In Stock
    Extech EX410A 8 Function Professional Digital Multimeter
    (no reviews)
    £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 Points
    Price Match Guarantee
    EX410
  5. Extech EX330 12-Function Mini Multimeter + Voltage Detector
    Extech logo
    Lead Time: 1-2 Weeks
    Extech EX330 12-Function Mini Multimeter + Voltage Detector
    (16)
    £50.40 £42.00
    • 12 functions in one tool - measure voltage, current, resistance, capacitance, temperature and more
    • Built-in non-contact AC voltage detector with red LED and audible warnings
    • Measure hands-free with the built-in tilt stand
    42 Reward Points
    Price Match Guarantee
    EX330
  6. Extech EX350 11 Function True RMS Digital Multimeter
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    Only 1 In Stock
    Extech EX350 11 Function True RMS Digital Multimeter
    (no reviews)
    £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 Points
    Price Match Guarantee
    EX350
  7. Extech EX355 12 Function True RMS Digital Multimeter
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    Only 1 In Stock
    Extech EX355 12 Function True RMS Digital Multimeter
    (no reviews)
    £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 Points
    Price Match Guarantee
    EX355
  8. Extech EX430A 11 Function True RMS Professional Multimeter
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    Only 1 In Stock
    Extech EX430A 11 Function True RMS Professional Multimeter
    (1)
    £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 Points
    Price Match Guarantee
    EX430
  9. Extech EX503 10 Function Heavy Duty Industrial Multimeter
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    2 In Stock
    Extech EX503 10 Function Heavy Duty Industrial Multimeter
    (no reviews)
    £83.94 £69.95
    • Double moulded casing for water protection
    • 10 measuring functions
    • Handy accessories included
    69 Reward Points
    Price Match Guarantee
    EX503
  10. Extech MM750W Wireless Datalogging CAT IV True-RMS Multimeter
    Extech logo
    Lead Time: 1-6 Days
    Extech MM750W Wireless Datalogging CAT IV True-RMS Multimeter
    (no reviews)
    £98.40 £82.00
    • Fourteen measurement functions
    • Includes a DAT12 Bluetooth Datalogging Module
    • Integrated non-contact AC voltage detector
    82 Reward Points
    Price Match Guarantee
    MM750W
  11. Extech EX505 Heavy Duty Industrial Multimeter
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    4 In Stock
    Extech EX505 Heavy Duty Industrial Multimeter
    (no reviews)
    £110.40 £92.00
    • Extremely durable - waterproof and drop-proof
    • 11 different testing functions
    • High accuracy
    92 Reward Points
    Price Match Guarantee
    EX505
  12. Extech EX470A 12 Function True RMS Multimeter + IR Thermometer
    Extech logo
    Lead Time: 1-2 Weeks
    Extech EX470A 12 Function True RMS Multimeter + IR Thermometer
    (1)
    £136.80 £114.00
    • Highest-spec digital multimeter in the EX400 series
    • Built-in infrared thermometer
    • 12 different measurement functions
    114 Reward Points
    Price Match Guarantee
    EX470
  13. Extech EX505 K Heavy Duty Industrial Multimeter Kit
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    Only 1 In Stock
    Extech EX505 K Heavy Duty Industrial Multimeter Kit
    (no reviews)
    £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 Points
    Price Match Guarantee
    EX505-K
  14. Extech EX520 11 Function Heavy Duty True RMS Industrial Multimeter
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    Extech EX520 11 Function Heavy Duty True RMS Industrial Multimeter
    (no reviews)
    £153.48 £127.90
    • Type K temperature probe included
    • High 0.09% basic accuracy
    • 6,000 count LCD display with backlit and bargraph
    127 Reward Points
    Price Match Guarantee
    EX520
  15. Extech EX530 11 Function Heavy Duty True RMS Industrial Multimeter
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    Extech EX530 11 Function Heavy Duty True RMS Industrial Multimeter
    (no reviews)
    £174.00 £145.00
    • Incredibly high basic accuracy of 0.06%
    • Takes 11 different measurements
    • Protected from water damage
    145 Reward Points
    Price Match Guarantee
    EX530
  16. Extech DL160 Dual Input True RMS AC Voltage/Current Datalogger
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    In Stock
    Extech DL160 Dual Input True RMS AC Voltage/Current Datalogger
    (no reviews)
    £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 Points
    Price Match Guarantee
    DL160

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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.

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