10 Best multimeter of 2019

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  • Measures up to 600V AC/DC voltage, 10A AC/DC current and 40...
  • Measures temperature, capacitance, frequency, duty-cycle,...
  • CAT III 600V safety rating
  • 【100% Safety Assurance】Built-in Double Fuse. Overload...
  • 【Auto-ranging Tester】Accurately measure AC/DC voltage,...
  • 【Backlight Display】 Designed with 3 1/2 digit LCD...
  • 【100% Safety Assurance】Built-in Double Fuse. Overload...
  • 【Auto-ranging Tester】Accurately measure AC/DC voltage,...
  • 【Backlight Display】 Designed with 3 1/2 digit LCD...
  • Accurately measures: AC/DC voltage, only for AC current (not...
  • Jaw opening: the Clamp measures the AC current in a...
  • Additional features: data hold, max reading, and an...
  • The MM300 multimeter measures AC/DC voltage, DC current and...
  • The NCVT-1 has a bright green LED to indicate the tester is...
  • NCVT-1 has a digitally-controlled ON/OFF power button and...
  • 【Neoteck 2000 Counts 8233D PRO Pocket Digital...
  • 【Large Backlit LCD Display】 Auto Polarity Display, Easy...
  • 【CE Rated Digital Mulimeter with Over Load Protection】...
  • UL certified product designed to safely and accurately...
  • Auto-ranging scales eliminate the need to dial in the...
  • Features large digital display and color coded LED's for...
  • WIDE RANGE of tests for Voltage, Current, Resistance,...
  • PROFESSIONAL LEVEL features include Auto-Ranging capability,...
  • EASE OF USE: Convenient features like Data Hold, Large LCD...
  • Measures up to 600V AC/DC voltage, 10A AC/DC current and 40...
  • Measures temperature, capacitance, frequency, duty-cycle,...
  • CAT III 600V safety rating
  • Basic dc accuracy 0.5%
  • CAT III 600 V safety rated
  • Diode and continuity test with buzzer, Rugged, durable...

Multimeter guide

Multimeter, what is it?

A multimeter are those instruments that can determine several specific electronic measures. Usually, at least four measured variables can be determined by these devices: The measurement of voltage (direct and alternating voltage), current (direct and alternating current), ohmic resistance and continuity belong to the basic equipment of these tools. multimeter are mainly used in the electrical and electronic sector and are part of the basic equipment of every electronics workshop. Even amateur hobbyists and DIY enthusiasts often and gladly fall back on these instruments, as they are inexpensive to purchase and good service.
These tools are available in very different designs and fabrication. Depending on the type, therefore, the design, the number of operating elements or the range of functions offered differ significantly. Depending on this, error deviations in the measurements can also be more or less large. Even the accessories may differ. Easy to use and mobile measuring instruments, for example, often have a simple rotary switch, with which the desired measurement can be quickly adjusted. However, there are also some more complex designs whose settings must be accomplished via keystrokes (e.g., laboratory meters). multimeter can be purchased as a pen or handheld gauge in small format, but they are also available as larger versions (desktop or laboratory multimeter) or installed as components in more complex test systems. The variety of offers especially in this area is enormous. It is therefore worthwhile to do certain research before buying and to compare the devices in question on their scope of functions and their intended use.

What are the differences? multimeter usually?

Multimeters are available both in analog and digital form. The analog devices usually have a rotary coil element to output the measurement by means of a needle display. The advantages of the analog measurement method are mainly seen in the fact that tendencies in the fluctuations by the needle movements can be read faster and the meter independent of energy sources such as batteriesor batteries can work. Also, the analog bar graph is often described as an advantage because the reading can be read more quickly than with digital displays.
The digital ones multimeter Since the 1990s they have become increasingly important because they are much easier to read due to the illuminated numerical display in darker rooms, enable more accurate measurements thanks to their higher resolution and can take on more functions. In addition, they are cheaper than analogue measuring devices. Although it is noted that even digital multimeter are subject to certain error deviations, but they are also superior to the analog multimeters in terms. In the following, the digital multimeters will be described for these reasons.
Digital multimeters (often abbreviated to DMM) output the measured values ​​via a digital numeric display as well as in the decimal system. Often, digital multimeters not only allow the measurement of the four measured variables mentioned, but also have additional functions such as frequency or capacitance measurement. They are also used to test diodes and transistors. The digital measuring instruments must always be powered by an energy source (batteries, batteries, power adapteror even solar cells). In addition to the features already described, today’s digital gauges offer the following help but, in principle, do not have to have all these features:

– The function Data-Hold and Min / Max storage: this allows the output measured value to be temporarily saved
– The bargraph analogue display: this function allows you to display the measured value on a bar graph, similar to the previous bar graph analogue gauges
– A high resolution: this means with how many digits the value of the digital measurement is output
– A display backlight: this makes it even easier to read the measured value in dark rooms or environments
– A rotary switch for a quick selection of the measuring functions
– A measuring range automatic: this function allows the device to independently set the upper and lower limits of the measuring range; this can be set manually for some device types
– An automatic polarity display: this function displays a minus value if the device is connected upside down to the poles
– A battery voltage indicator: this function indicates when the power supply to the device becomes too low.
– A USB interface for direct data processing PCor laptop

Which functions do multimeters have?

As already described, the measuring variables Ampere, Volt and Ohm can generally be measured with multimeters. The higher quality devices are able to protect against over voltage and overload and can select the voltage measurement range itself. The alternating variables are usually measured with such devices as RMS values.
Another function of multiple measuring devices may be, for example, the diagnosis of lines on current passage. This is always necessary if it is not clear whether current is flowing on visible cables or which ends belong to each other. Incidentally, there are also device types that emit an acoustic signal. Furthermore, it is possible with multimeters to make frequency counts. For example, the use of an oscilloscope multimeter, which can display the frequency oscillations, is useful for measuring higher frequencies. The possible functions of a DMM may also include the determination of the capacity (current output) of, for example, capacitors. The testing of diodes or transistors on their functioning is also part of many measuring devices.
Other functions of multimeters can also be the following:
The determination of the pulse width, revolutions (by means of induction tongs, which can often be purchased separately), tactile measurement, closing angle measurements and determination of the degree of utilization (for services in the automotive sector) as well as the determination of the temperature.

What should be considered when buying a multimeter?

Measuring electricity, especially current, involves a number of risks. Errors in the use of the meter can lead to dangerous situations. Multimeters are offered within a wide price range. So are sold again and again devices that can be burned or even explode on first use. Above all, inexperienced persons should therefore read the operating instructions of the corresponding device type exactly, inform themselves about what the device is capable of or what it is not intended for. Also commercially available are devices that are explicitly intended for inexperienced people and are accordingly easy to use. Also, professional women and men can give you a precise information regarding handling and use and advise you on your purchase. The following questions should be clarified in each case:

– What is the meter used for? What must it be able to withstand?
– Does the device comply with the general safety standard?
– Does it have a double housing insulation?
– Are the current inputs secured?
– Does the device make a stable and good impression, is it properly built in dust-proof?
– Is there a manual containing information on the device and the safety instructions?
– Does the device have overload protection when measuring resistance?
– When used to measure high current voltages: Does the device include current clamps or high voltage probes?

*Last update on 2019-08-28 / Affiliate links(we get a commission when you buy on amazon) / Images from Amazon Product Advertising API