At present, there are many different brands of electric plug locks on the market, with different sales prices and uneven quality.

First, good workmanship does not mean that the electric lock quality is good

From the surface, there are fine workmanship, there are relatively rough, of course, we must choose fine workmanship manufacturers products, because from the surface can be seen the technical level of the manufacturer, but the surface is done well product quality must be good? Not necessarily.

Electric lock is different from magnetic lock, electric lock manufacturing process requirements are very strict, not the general manufacturers can master, can do well in the country only a few.

Second, but there are many brands of electric plug locks on the market why there is a market?

That is because the first is the low price, and the second is the use of the electric lock characteristics. Generally speaking, there is no problem in the early use of electric lock without special technology and the use of special materials, there is no power, they will use the method of reducing the spring force to achieve the action of electric lock, so there is a certain masking, but everyone picks up the electric lock gently move, try the state of the lock tongue to know, and with the use of a long time, the real problem comes.

Third, why can't the lock tongue come out and the action is slow? 

Because the electric lock is the use of electromagnetic coil to produce a magnetic field and work, the material requirements are very strict, the general material can also produce a magnetic field, but the permeability is not high, so the magnetic force is small, the action force of the lock is of course small; In addition, the material without special process is magnetized, the longer the time, the greater the accumulation, the smaller the magnetic force, the more residual magnetic, so the electric lock action is more and more slow, and finally no action. The general electric plug lock will appear after six months to one year, so I hope you should pay attention to it when buying the electric plug lock.