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40W Medium Power 1-50m 8 Channels Cell Phone Signal Jammer for Prison

Cell Phone Signal Jammer
November 20, 2025
Category Connection: 携帯電話信号の妨害機
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Tags:
#携帯電話のwifiの妨害機 #携帯電話のブロッカー #携帯電話の頻度妨害機
Brief: Discover the powerful capabilities of the 40W Medium Power 8 Channels Cell Phone Signal Jammer for Prison in this detailed video. Learn how this device effectively blocks signals across multiple frequencies, ensuring secure environments in prisons and other high-security areas. See its adjustable jamming range, robust design, and versatile applications in action.
Related Product Features:
  • Adjustable jamming range of 1-50 meters, ideal for various secure environments.
  • Blocks 8 different frequency bands including CDMA, GSM, DCS, 3G, WIFI, and 4G LTE.
  • High total output power of 40W with single output power of +37dBm / 5W.
  • Compact and durable design with dimensions of 380(L)×300(W)×90(H)mm.
  • Suitable for prisons, conference rooms, libraries, and other sensitive areas.
  • Includes 8 omni-directional antennas for comprehensive signal coverage.
  • Works in extreme temperatures from -40℃ to +55℃.
  • OEM and logo printing available for bulk orders.
よくある質問:
  • What frequencies does this jammer block?
    The jammer blocks CDMA (850-894MHz), GSM (930-960MHz), DCS (1805-1880MHz), PHS (1900-1990MHz), 3G (2110-2170MHz), WIFI (2400-2500MHz), and 4G LTE (2300-2400MHz & 2620-2690MHz).
  • What is the jamming range of this device?
    The jamming range is adjustable from 1 to 50 meters, depending on the cellular signal strength in the area (must be ≤-85dBm).
  • Can this jammer be used in extreme temperatures?
    Yes, the jammer operates effectively in temperatures ranging from -40℃ to +55℃, making it suitable for various environments.
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