Element 1: High shielding efficiency
To put it bluntly, high shielding efficiency refers to whether the actual shielding effect has blind spots or loopholes. There may be communication base stations with strong signals around some prisons. In order to achieve a good shielding effect, a lot of material and energy will be spent, and the cost will increase significantly. Therefore, the better the shielding effect, the higher the cost. In actual applications, the cell phone jammer of the prison area are generally higher, and if there is a slight loophole, the personnel who violate the regulations may take advantage of this loophole, making it impossible to use mobile phones in the originally required shielding area. Block the original intention on the mobile phone.
Element 2: No problem recommendation
If the original requirement is 1 year without any problems, and if there are no problems in the actual application, it can reach 3 years, then the price/performance ratio is three times higher.
If there is no problem in the original requirement, the service life is one year, but in actual use, failures often occur in less than half a year. Although it is a free warranty, the risk is immeasurable and the staff resources are also consumed. The corresponding price/performance ratio is Gao was greatly affected.
Element 3: Impact of opening up to the outside world
If the external impact is not considered, it is very easy to implement simple shielding, just increase the shielding output power. However, it is necessary to ensure that there are no blind spots or leaks in the shielded area. The output power in the shielded area is very strong. If there is a little leakage, the impact on the opening to the outside world will be very large. This needs to be considered during the shielding design and controlled from all aspects to ensure accurate and efficient shielding without affecting opening up.
Element 4: Cost
The cost should follow the evaluation regulations and cost budget. You should not blindly select cheap products, nor should you think that expensive products are good. In the actual selection, user evaluation is very important, and it is also necessary to conduct on-the-spot investigation of past examples. Try the shielding effect and then optimize.
Combining these four elements, the cost-effectiveness of the signal jammer for sale system software can be calculated using the following formula: (the greater the effect, the higher the cost-effectiveness)