Which kind of multimeter for electricians is suitable for families and has higher cost performance
It is still the pointer type MF-47. Although it is old and has never been improved, many data are still based on this old-fashioned pointer watch, especially in the maintenance of home appliances. As an electrician, it is more convenient to use a pointer meter, because the general electrician does not require high precision, but requires fast measurement of on-off, and the reading of the digital meter jumping back and forth is relatively slow. I am working as an electrician now, and I often use one MF47 multimeter. There are two digital meters. I thought it was fresh when I first bought it, but it is not practical after a long time.
A multimeter for home use does not require high accuracy. You can just buy a digital multimeter, which is very cheap for tens of yuan. It is better to use a pointer multimeter for industrial and maintenance purposes. When using digital measurement, the digital reflection is too slow and it is not applicable. For general measurement, it is enough to buy a meter with an accuracy of 2.5, and the price is also very cheap. The price of high-precision watches will be much higher. Whether it is worth buying depends on the needs.
The frequency of household use is low, and the measurement accuracy requirements are not high. Generally, a small pointer multimeter is fine. If you have the ability to use a microampere meter to make a general meter, it is very simple. If you add five diodes, a resistor and a two-pole double The toggle switch can be made into a dual-purpose meter for 22O voltage and on-off measurement (of course, a small battery is required)
Determine the range and accuracy of the multimeter according to the voltage, current, and resistance range you are measuring. The multimeter suitable for the family measures the voltage range AC AC60v-500v; DC1v-600v; current 0.5MA-10A; resistance 1Ω-10kΩ. It is recommended to use MF47 pointer multimeter.
The domestically produced GVDA meter is good, cheap, and practical, but there will be errors in the use of resistance gears, and the accuracy is no problem for daily use. I have been using it all the time, the beep sound is loud, and it is very convenient to check the short circuit and open circuit.
