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Legal Certification

Magicleaf SIMT shielding effectiveness test report

Legal Certification

Magicleaf provides third-party shielding test data for qualified buyers who need product verification during sourcing and procurement. Magicleaf's shielding-related products use conductive lining material that has been tested by the Shanghai Institute of Measurement and Testing Technology (SIMT), an accredited third-party laboratory under China's national metrology system.


The test results show shielding effectiveness across a wide frequency range, from 12 MHz to 3000 MHz. The reported attenuation depth ranges from 70.7 dB to 74.2 dB, with shielding effectiveness reaching 99.9999% or higher at every tested frequency band. These results help buyers better understand how the material performs against RFID, GPS, cellular signals, and WiFi frequency ranges covered by the report.


Frequency P₁ (dBm) P₂ (dBm) SE (dB) Shielding Effectiveness (%)
12 MHz -0.1 -70.9 70.8 99.9999913%
30 MHz -0.1 -70.8 70.7 99.9999913%
100 MHz -0.1 -71.3 71.2 99.9999924%
300 MHz -0.4 -72.2 71.8 99.9999935%
1000 MHz -1.2 -72.6 71.4 99.9999934%
3000 MHz -1.4 -75.6 74.2 99.9999948%


Test Authority: Shanghai Institute of Measurement and Testing Technology (SIMT)
Report No.: 2012F33-60-000163
Test Standard: SJ20524-1995 — Shielding Effectiveness of Electromagnetic Shielding Materials
Test Method: Signal generator → Shielded test chamber → Spectrum analyzer


This report confirms the shielding performance of the conductive lining material used in Magicleaf's signal-blocking product line, including Faraday bags, signal-blocking phone pouches, EMF protection bags, car key signal blocking boxes, and RFID blocking wallets. For buyers conducting product evaluation or compliance review, the full report is available upon request.