What is the difference between a cheap multimeter and an expensive one?

The main differences between a cheap multimeter and an expensive one are as follows:

1.Accuracy: Cheap multimeters may have lower accuracy, while expensive multimeters often have higher accuracy. This can lead to a wider margin of error in the measurement results, so a more expensive multimeter should be chosen for jobs that require high-precision measurements.

2.Quality: Due to ** differences, cheap multimeters may have unstable quality problems during use, such as short service life, easy damage to parts, etc.

Whereas, expensive multimeters usually use higher quality materials and more advanced processes, so the quality is more reliable and lasts longer.

3.Features: Cheap multimeters may only have basic resistance, voltage, and current measurement functions, while expensive multimeters may have more features, such as better security, more measurement modes, etc.

In conclusion, when choosing a multimeter, you need to weigh factors such as accuracy, quality, and functionality according to your actual needs and usage scenarios to choose the most suitable multimeter for you.

This friend, multimeter.

The main role is numerical accuracy.

The accuracy of the general multimeter is not up to the requirements, the accuracy of the high is relatively high, one is the brand and the origin, and the configuration of the function is determined by the number of points. If you use resistance, voltage, and current, you can use a general meter.

The first is that the measurement accuracy is very different, and the second is that the structure and manufacturing process are even more different. It's okay to use it casually at home for twenty or thirty yuan, and it can be used for a year and a half.

In general, Fluke's is good.

Fluke has a wide range of multimeter models, from routine use to large-scale engineering testing. For daily use, I recommend two models, which are super easy to use and cost-effective: Fluke 15B+ and Fluke 110CN.

Let's talk about Fluke 15B+ first, if this one is put at home for daily use, it feels like it can be used for ......a lifetimeSuper durable, not easy to break, the biggest feature is cheap! At the same time, the basic functions are the same, the basic voltage, current, resistance, diode, capacitor are available, as well as milliampere and microampere gear, used to measure small current, if you don't plan to measure a large project, just buy this.

The analog multimeter is a multi-functional measuring instrument with a meter head as the core component, and the measured value is indicated and read by the meter head pointer. The measured values of the digital multimeters are displayed digitally directly on the LCD screen, which is easy to read, and some have a voice prompt function. A multimeter is a common meter head, which integrates voltmeter, ammeter and ohmmeter.

The DC current level of the multimeter is a multi-range DC voltmeter. The voltage range can be extended by parallel connection of the meter with a closed-circuit divider. The DC voltage level of the multimeter is a multi-range DC voltmeter.

The voltage divider resistor can be extended by connecting the voltage divider in series at the meter head. Depending on the voltage divider, the corresponding range is also different. The head of the multimeter is a magnetoelectric measuring mechanism, which can only use direct current, and use diodes to change AC to DC, so as to realize the measurement of alternating current.

The recognized good brand of ordinary handheld multimeter is Fluke, which has high index, solid leather and fast response speed, high-end Fluke289C, wide AC frequency response (up to 200kHz), and popular Fluke15B and Fluke17B have a high market share;

The three major brands of domestic multimeters (Shengli, Unilead, Huayi) are relatively cost-effective and are also good choices;

Actually, Japan's Sanwa sanwa, Hioki hioki...., the quality is excellent, and it feels better than the Fluke at the same price.

Fluke Multimeter is a powerful provider in the multimeter industry, and the brand is also a well-known brand in China. Fluke multimeter has a high degree of attention in well-known domestic search engines or shopping**, and it also has a very high support rate on the Internet, and it is a better brand for online shopping. Recommendation 2:

Unilead Multimeter Unilead Group is one of the largest instrumentation companies in Asia and the largest brand in China's test instrument market. The Group develops and manufactures the most innovative, reliable, high-quality, safe and easy-to-use technology products in China, and sells products and services to the global market. Recommendation three:

Antaixin Multimeter Antaixin Electronics is one of the largest and most technologically powerful electronic instrument manufacturing companies in China, and it is also the only enterprise in China that produces industrial and civil spectrum analyzers on a large scale. Now it has successfully passed the ISO9001:2000 quality certification system.

Different multimeters have different types and accuracy, generally handheld multimeters are cheaper than desktop multimeters, you can buy one for dozens of low, often the accuracy is lower, basically 3 and a half digits or 4 and a half, and then go up is basically a desktop multimeter, desktop multimeters are much more expensive than handheld ones, basically more than 1,000 yuan, often high-precision or industrial-grade multimeters are desktop.

For multimeters, the domestic ones are generally lower than those of foreign countries, and they are very high for big foreign brands such as Agilent Fluke, like some domestic brands such as Dingyang, Unilead, etc., which are actually the same as domestic mobile phones and foreign mobile phones.

It has to do with the accuracy, quality, and functionality of the multimeter, as well as the value of the brand itself.

Cheap digital multimeters usually use domestic ICL7106 chips, bit accuracy, general quality (some can be described as inferior), ** about 50 yuan or less. A better table may be more accurate, or have some special features (such as true RMS measurement, autoranging, etc.), which is naturally more expensive.

Non-professional amateur play, digital watch buy cheap DT830 or DT9205 can be, online within 50 yuan can be bought, generally copycat miscellaneous brands, can meet the general needs of amateur use, pointer table MF47 can. If you are engaged in circuit-related industries, it is recommended to buy digital watches and pointer meters of more than 100 yuan, but there is no need to be too expensive, Huayi, Shengli, Unilead and other brands of multimeters are of good quality, medium and low grade is enough, there is no need to buy a very expensive multimeter like Fluke. High-end multimeters, Agilent, Fluke and other brands are relatively well-known, but the most expensive is amazing (such as Agilent's 3458A multimeter, second-hand machines are not less than 10,000 yuan), and ordinary users can't use such high-end watches.

Hexagon, Marr and Mitutoyo multimeters are of better brand.

Clause. First, the brand of the multimeter. There are many brands of multimeters on the market, such as Hexagon, Marr and Mitutoyo and other multimeters.

Clause. Second, the multimeter of **. Different brands of multimeters also have certain differences in the first place, so you need to buy a cost-effective multimeter according to your own economic status.

Clause. Third, the quality of the multimeter. When buying a multimeter, you should carefully check the quality of the multimeter, observe whether there are cracks, etc., if there are cracks, it is not suitable to buy.

Clause. Fourth, after-sales service. When buying a multimeter, it is necessary to buy it through formal channels, and after-sales service is also very important, so you should choose the store with good after-sales service.

How does a multimeter measure the zero line of the fire wire?

1. Prepare the multimeter, adjust the multimeter to the AC gear, wrap the black watch pen around the left hand about two times, and the red watch pen is in contact with either the live wire or the neutral line.

2. Then observe the value, if the measured value is within 5 volts, you can judge that it is the zero line, because generally speaking, the zero line has no voltage. And if the measured value has exceeded 10 volts, it can be judged that the wire is a live wire.

3. In addition to being measured with a multimeter, because it can most directly reflect the voltage of the live wire and the neutral line, the more convenient way is to pass the voltage tester, if it is lit, it means that it is the live wire, if it is not lit, it means that it is the neutral line.

4. Use a multimeter to detect the live wire and the neutral line, the main principle is to pass the voltage generated in the AC circuit, if it is the live wire, the neutral line and the lowest voltage are about 220 volts. The voltage of the neutral line is generally 0, and through this principle, we can understand what is the live wire and what is the neutral line.

1. Delixi multimeter

Delixi is a high-end product enterprise specializing in the field of power transmission and distribution; Delixi multimeter using LCD large screen display, the body of the high-end avant-garde design, a variety of processes complement each other, in one go, simple design, accurate measurement, the brand can be trusted.

2. Fluke multimeter

Automatic range setting with full parameters; The multimeter can be used easily and quickly, and at the same time, the wear and tear of the dial can be greatly reduced. The appearance is light and compact, convenient and durable; It is also equipped with an intelligent magnetic multi-purpose pendant.

3. Victory multimeter

Built-in double safety tube protection device, with overload protection circuit, anti-burn workbench and other intelligent anti-burning functions. The multimeter comes with a shockproof protective sleeve design, which is anti-scratch and impact-resistant.

Tips for choosing a multimeter

1. Look at safety: as long as it is related to electricity, its own safety and production safety must be put in the first place, and the selected multimeter should have a built-in double-tube fuse, so as to ensure safety to the greatest extent.

2. Look at operability: the so-called operability is the simplicity and complexity of the operation of the multimeter, etc., for the operator, as long as the operation of the multimeter is simpler on the basis of meeting the functional needs, the better. For example, the auto-ranging function of a multimeter is necessary.

3. Look at the protective measures: when meeting the basic functions of a multimeter, the external protection is also very important, because the use environment of the multimeter is indeed very harsh in some places, if the multimeter can be equipped with a protective sleeve with strong wear resistance and the corresponding auxiliary functions, it can greatly improve the service life of a multimeter.

4. Look at the screen design: the final output device is still on the display screen, only to make the data read on the display screen accurate our measurement is meaningful, and the design of all auxiliary readers is also very important, such as the design of the analog scale, the backlight design, can reduce the error of the reading to a certain extent.

Summary. The best brand of digital multimeter is Fluke, no need to manually adjust the gear, -m is automatically identified, this kind of thing is not cost-effective, *** is expensive, Fluke's cheapest multimeter is more than 300 a piece.

The best brand of digital multimeter is Fluke, no need to manually adjust the gear, -m is automatically identified, this kind of thing is not cost-effective, *** is expensive, Fluke's cheapest multimeter is more than 300 a piece.

Recommend four high-quality and easy-to-use digital multimeters 1, Shengli Instrument VC890C+ Category: Voltage measurement The screen reading sound is loud and clear, and when the knob is switched, each grid is also very clear, and it feels very good. The screw holder of the battery cover is metal, which is very careful, durable, fully functional, and the screen brightness is suitable.

2. Fluke F15B+ Category: Voltage Measurement Fluke's multimeter is practical and accurate. The operation is fast and easy, the use range is wide, it is a good helper to inspect the electrical equipment, the font is large enough, the display is clear, the switch damping is even, I like it very much, it is less protective cover.

3. Baogong MT-1280 Category: Voltage measurement current workmanship is very good, the response is also relatively sensitive, the function is comprehensive, NCV function phone charging cable (5V) can also have peak sound, not so urgent, non-professionals use more than enough, can solve a lot of practical daily needs. 4. UT33B+ category:

Voltage measurement current multimeter digital household high precision, pocket automatic multi-function anti-burning palm meter, shock-resistant and anti-drop, full-scale anti-burning protection, automatic shutdown, comprehensive and practical functions, fine workmanship, and anti-drop jacket, you can judge the quality of the battery according to the preset.

If it is a mechanical watch, the difference is in many aspects such as design, material, workmanship, movement, etc. If you have a more intuitive concept of the car, then the difference between a good watch and an ordinary watch is like the difference between a Rolls-Royce and Santana in a car, which is different from the inside out.

At one point, there is no essential difference, they can all look at the time. It's just that a good watch brand is good, and it is good to take it out to save face, and those who buy good watches are bought for face.

Valuable: Brand! Material! Work! After-sales service!