Cell Phone Blocking Device For Cars
The so-called effective shielding refers to whether there are blind spots or missing spots in the shielding effect. Near some prisons, there may be transmitting base stations with strong mobile phone signals. In order to achieve a good shielding effect, a lot of materials and energy will be spent correspondingly, and the cost will correspondingly increase substantially. Therefore, the better Cell Phone Blocking Device For Cars shielding effect is, the cost will increase accordingly. In actual use, the shielding requirements of the prison area are generally higher, and there are some missing points and blind spots. Offenders may seize this loophole, making it possible to use mobile phones in the original cell phone jammer area, which cannot achieve the original intention of shielding mobile phones. If the original stipulation that the failure-free service life is 1 year and the failure-free service reaches 3 years in actual use, the cost performance will be tripled.
If the original stipulation that the failure-free service life is 1 year, it will often fail in less than half a year in actual use. Although it is a free warranty, the risk is immeasurable, personnel resources are wasted, and the corresponding price-performance ratio is greatly reduced. If the external influence is not considered, it is relatively easy to simply shield, just increase the shielding Cell Phone Blocking Device For Cars power. However, it is necessary to ensure that the shielding area has no blind areas and no leakage points. The power intensity in the shielding area is relatively high. If there is a little leakage, the external influence will be great. This requires full consideration and technical control when shielding design, so as to achieve accurate and efficient shielding without external influence. The cost should follow the shielding requirements and budget. You can't blindly choose cheap products, and you can't think that the expensive is good. In the actual choice, word of mouth is very important. It is necessary to conduct a field inspection of past cases, test the shielding effect, and then make a selection.