7 DMM: How to Choose, features, pros and cons

The meter is designed to determine the physical quantities and electrical appliances compounds tester combines the functions of several devices including ammeter, voltmeter and ohmmeter. In today's market of measuring instruments is a wide range of analog and digital devices. Digital multimeters have a more extensive functionality and minimal error.

How to choose a digital multimeter

Before selecting a model, determine the purposes for which the meter is purchased. To perform household tasks fit tester with a basic set of features required for professional use device with enhanced functionality. When selecting the meter should also pay attention to the key features of a digital device.

important parameters

• screen capacity - the parameter defines how many digits will be displayed on the display after the decimal point in the measurement;
• measuring range - indicates the lower and upper limits of the measured parameter values;
• accuracy - factors affecting the accuracy of the result, ideally, the error should not exceed 1-1.5%;
• reliability and quality of communication parts.

secondary criteria

• form factor;
• body color;
• the country of manufacture;
• design features (display light, stand, etc.).

Most models of digital testers are presented in the review.

Digital Multimeter Mastech MY62

The electronic measuring device is used to determine a number of specifications, including the AC and DC power, voltage, capacitance, resistance and temperature. On the front panel of the measuring device located selector switch, by which the manual setting of the limits of measurement values. The meter is equipped with functions of test transistors and diodes, audible continuity test.

Characteristics

• screen capacity - 3 ½;
• number of measurements per second - 3;
• food - from the battery;
• multimeter Weight - 0.31 kg;
• body dimensions - 9,1h18,9h3,15 cm;
• constant voltage - lower limit of 0.001 V, the upper value of 1000;
• alternating voltage - In 0,001-700;
• current intensity - the minimal parameter 1 mA, upper limit 10A;
• temperature - minimum -20⁰With a maximum 1000⁰FROM;
• Resistance - lower limit of 0.1 ohms, the upper value of 200 MOhm;
• container - a minimum of 2 pF, the maximum - 20 uF;
• frequency - in the range from 40 to 400 Hz.

pros

• compact dimensions of the device;
• functionality;
• high accuracy of the result;
• Auto Power Off;
• sound indication;
• easy to read LCD display;
• Case supplied.

Minuses

• cost;
• the weight.

Digital Multimeter ITC MAS830L

Multimeter Model MAS830L known from the ITC brand Mastech is a compact portable measuring device with manual selection limits measurements. The digital tester is equipped with a large 3 ½-digit LCD screen with a mark of 12.7 mm in height and standard connectors for probes. A compact device is used for determining values ​​of voltage, resistance, dc and verification of diodes.

Characteristics

• food - from the battery;
• unit weight - 0.2 kg;
• the size of the meter - see 13,8h6,9h3,1;
• number of measurements per second - 3;
• constant voltage - minimum value of 0.2 V, the upper parameter 600;
• alternating voltage - lower value of 200 V, 600 V max;
• temperature - minimum -20⁰C, maximum 760⁰FROM;
• frequency - measuring range 40-400 Hz;
• current strength - minimum 0,002 A maximum of 10 A;
• Resistance - lower limit of 200 ohms, the upper value of 2 megohms.

pros

• the display light with automatic shut-off;
• output function of the measured values ​​on the screen;
• polymeric protective casing;
• Foldable;
• low weight;
• compact body;
• Diode-test;
• function "continuity" of electrical circuit;
• affordable price;
• high measurement accuracy.

Minus - a limited number of measured values.

Digital multimeter PEAKMETER PM320

Pocket PEAKMETER PM320 measuring device with high accuracy to determine the number of electric circuit parameters - voltage, capacitance, current, resistance, frequency. Selection outside the measurement is carried out automatically. To further test the functional device refers diodes and audible indication when the resistance in the electrical circuit falls below 50 ohms.

Characteristics

• unit weight - 0.14 kg;
• device dimensions - 3h13h8 cm;
• food - LR44 battery;
• constant voltage - lower value of 0.001 V, the upper limit of 600 V;
• alternating voltage - minimum parameter 1 mV, the maximum limit of 600 V;
• minimum capacity - 1 pF, the maximum value - 100 uF;
• frequency - values ​​range from 0.01 Hz to 100 kHz;
• amperage - 0.01 mA to 0.4 A;
• Resistance - lower limit of 1 ohm, the upper value of 40 megohms.

pros

• stylish design;
• light weight;
• miniature dimensions;
• ergonomic design;
• Case for transporting complete;
• auto power-off;
• minimum reading error;
• possible to fix the readings on the display;
• automatic polarity indication;
• attractive price.

Less - does not provide the backlight.

Digital multimeter Bison TX-810-T

Bison Electronic Tester TX-810 - is a measuring digital instrument with an optimal set of functions that can be used both in the professional field as well as in everyday life. The apparatus used to determine the physical parameters and diagnostic devices and electrical circuits. Selection of limits of the measured values ​​is carried out in a mechanical mode with the selector switch.

Characteristics

• power - battery;
• number of measurements per second - 3;
• its weight - 0.215 kg;
• device dimensions - 13,8h6,8h3,7 cm;
• alternating voltage - 200 V to 600 V;
• constant voltage - lower value of 0.2 V, the maximum limit of 600 V;
• DC - lower range of 0,002 A and the maximum value - 10 A;
• Resistance - the minimum setting of 200 ohms, the upper limit of 2 MOhm.

pros

• simple design;
• quality assembly;
• antislip rubber body;
• the presence of the stand;
• large display;
• intuitive control of the device;
• display backlighting;
• Data Hold function allows you to record the measurement result;
• diode test;
• overload indication;
• fuse;
• the minimum error;
• Device versatility;
• affordable price.

Minus - the weight of the meter.

NEO 94-001 Digital Multimeter

With digital versatile NEO 94-001 tester can easily determine the magnitude of voltage in the electric circuit to measure the current, capacitance and resistance. The instrument design provides for automatic switching the measurement range. The meter is equipped with a Data Hold technology that allows you to record the results of the last measurement.

Characteristics

• food - Three AAA batteries;
• its weight - 0.385 kg;
• device dimensions - 15,8h7,5h3,5 cm;
• constant voltage - 0.2 V lower limit, the maximum setting of 600 V;
• alternating voltage - minimum value of 2, an upper limit of 600 V;
• DC current - 200 mA-10A;
• container - a minimum of 20 pF, the maximum 1000 uF;
• Resistance - the minimum value of 200 ohms, the upper limit of 2 MOhm.

pros

• lightweight design of durable plastic;
• nylon bag for transporting and storing device;
• informative backlit liquid crystal display;
• functionality;
• maximum measurement accuracy;
• gain transistor;
• Diode-test;
• Auto Power Off;
• sound indication.

Minuses

• the price higher than the average price category;
• increased weight of the device.

Digital Multimeter CEM DT-9908

The measuring device used for the diagnosis and determine the main electrical parameters of the electrical connections. Tester enclosed in waterproof, waterproof plastic housing. Universal multimeter CEM DT-9908 may be used to determine parameters of the electrical circuits in the professional and domestic purposes.

Characteristics

• number of measurements per second of time - 2;
• unit weight - 0.36 kg;
• device dimensions - 18,2h8,2h5,5 cm;
• power - battery;
• maximum constant voltage - 1000;
• maximum variable voltage - 700 V;
• Current - 20 A;
• limit value of capacitance - 200 uF;
• Frequency - 2000 Hz;
• temperature limit - 760⁰FROM;
• maximum resistance - 20 megohms.

pros

• broad functionality;
• impact resistant casing;
• ergonomic design;
• outriggers;
• high-contrast LCD screen with backlight;
• auto power-off;
• Thermometer function;
• diode test;
• simple operation;
• selection of ranges in athematic mode;
• Measurement fixation;
• high degree of protection.

Minuses

• considerable cost;
• increased weight.

Digital multimeter Testo 760-3

Intelligent professional tester automatically identifies the type of probe and determines the parameter to be measured. The device for the diagnosis of electrical connections Testo 760-3 is equipped with innovative technology Management presented in the form of function buttons, which provide maximum comfort for user.

Characteristics

• unit weight - 0.34 kg;
• device dimensions - 16,7h8,4h4,5 cm;
• food - Three AAA batteries;
• voltage - minimum parameter 0,001 V, the upper limit of 1000;
• amperage - 0.001 A to 10 A;
• resistance - low value of 0.1 ohms to 60 megohms upper value;
• boundary capacitance values ​​- 0.001 pF, 60,000 microfarads;
• frequency - the minimum value of 0.1 Hz, the maximum value of 60 MHz;
• temperature - from -20 to +500⁰FROM.

pros

• high functionality;
• stylish appearance;
• widescreen display;
• backlight;
• automatic selection of operating modes and measurement ranges;
• low measurement error;
• Diode tester;
• a pulse counter;
• Adapter temperature;
• freeze of the last readings;
• automatic disconnection device.

Minuses

• high price;
• increased weight.

Handyman using a tester can independently detect the presence of gaps in a circuit to measure the magnitude of current, resistance and voltage of the network capacity and performance capacitors and diodes transistors. Multimeter - an indispensable tool in repairing electrical equipment.