There are many manufacturers of telephone jammers in the market, each with good or bad quality. How to choose before purchasing? How can I buy cost-effective products with good on-site shielding effect. Satisfied with the after-sales service. Today, we will see how to select the telephone jammer to maximize the shielding effect.

1. Select the telephone jammer, understand the professional knowledge of various aspects of the equipment, judge the quality of the machine, and check whether the salesperson is professional when docking,

2. Determine the telephone jammer, which can be sold to the manufacturer of the shielding machine you need. It is recommended to meet your needs. You can also go to the site for field inspection as required, or carry a prototype shield machine for field test. After field investigation, the manufacturer can plan the installation layout of No. shield to maximize the shielding effect.

3. Don't just choose manufacturers with low prices. The selected electronic components are second-hand, and the shielding effect is very good at the beginning. For a long time, the shielding effect of the shield is certainly not as good as that of the new electronic components. Low price shielding machine material, after-sales may not be able to satisfy you.

4 For the sake of long-term consideration, we can choose the exclusive manufacturer of mobile phone jammers that can be upgraded and reserve the location for upgrading modules. If the shielding effect is not good in the later period, we can add modules in the shielding machine to enhance the shielding effect