Digital Multimeters (159 Products)

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  1. Extech MN30 True RMS AutoSensing Digital Multimeter with Test Leads All Extech Products
     
    Extech MN30 True RMS AutoSensing Digital Multimeter
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    • Pocket-sized digital multimeter made for basic electrical measurements
    • Unique AutoSense mode determines correct measurement at inputs automatically
    • True RMS accuracy
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    SKU: MN30
  2. Extech EX310 9 Function Mini MultiMeter Non Contact Voltage Detector All Extech Products
     
    Extech EX310 Mini Digital Multimeter
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    £32.76 £27.30
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    • Measure AC/DC voltage, AC/DC current, resistance and continuity/diode
    • Built-in voltage detector
    • Ideal for basic electrical applications
    54 Reward Points
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    SKU: EX310
  3. Extech 381676 Pen DMM with Non Contact Voltage Detector - Kit All Extech Products
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    Extech 381676A Pen DMM with Non Contact Voltage Detector
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    • Pen style – easily fits in your pocket
    • Performs six measuring functions
    • Suits a whole range of uses
    60 Reward Points
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    SKU: 381676
  4. Extech EX410 8 Function Professional MultiMeter - Kit All Extech Products
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    Extech EX410A 8 Function Professional Digital Multimeter
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    • 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
    64 Reward Points
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    SKU: EX410
  5. Extech DM220 Mini Pocket MultiMeter with Non Contact Voltage Detector All Extech Products
     
    Extech DM220 Mini Pocket Multimeter
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    • Built in non-contact voltage detector and torch
    • Pocket-sized design
    • Test voltage, current, resistance, frequency, capacitance and more
    70 Reward Points
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    SKU: DM220
  6. Extech EX320 8 Function Mini MultiMeter + Non Contact Voltage Detector All Extech Products
     
    Extech EX320 8 Function Mini Multimeter + Non Contact Voltage Detector
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    • AC voltage detection system
    • Basic accuracy of 0.5%
    • Large digit 2000 count LCD display to view your measurements
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    SKU: EX320
  7. Extech EX330 12 Function Mini MultiMeter Non Contact Voltage Detector - Kit All Extech Products
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    Extech EX330 12-Function Mini Multimeter + Voltage Detector
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    • 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
    74 Reward Points
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    SKU: EX330
  8. Extech EX205T Digital Multimeter - Kit All Extech Products
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    Extech EX205T Digital Multimeter
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    £53.28 £44.40
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    • True RMS DMM
    • Measures AC/DC voltage and current, resistance, continuity and diode
    • Autoranging digital multimeter
    88 Reward Points
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    SKU: EX205T
  9. Extech EX350 11 Function True RMS Digital Multimeter - Kit All Extech Products
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    Extech EX350 11 Function True RMS Digital Multimeter
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    • High accuracy, true RMS handheld digital multimeter
    • Measure voltage, capacitance, current, diode, resistance and more
    • Data hold and MAX/MIN functions
    102 Reward Points
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    SKU: EX350
  10. Extech EX411 8 Function True RMS Professional MultiMeter - Kit All Extech Products
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    Extech EX411A 8 Function True RMS Professional Multimeter
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    £64.64 £53.87
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    • Upgraded version of Extech's EX410A with true RMS included
    • Tests AC/DC voltage and current, resistance, temperature, continuity and diode
    • High quality, backlit LCD display
    106 Reward Points
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    SKU: EX411
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About Digital Multimeters

While traditionally 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 a number of advantages over their analogue counterparts. They're generally much more varied in the amount 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 DMM's 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. Auto ranging 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 is applicable 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 which 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 its possible to either permanently store this data (and download it later to 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 applicable test leads for carrying out the tests that particular digital multimeter can perform.

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