High Power 12CH Handheld Signal Jammer with 20 Meters Radius for GPS WIFI Signal Blocking
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Detailed Product Description
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High Power 12CH Cell Phone Signal Jammer Professional GPS and WiFi signal blocker with 1 to 20 meters radius
coverage for secure environments. Product Overview This 12-channel handheld mobile phone signal shielding device is
engineered with advanced technology to provide reliable
communication blocking in sensitive areas. Designed for security
and confidentiality requirements, it effectively blocks GSM, CDMA,
DCS, PHS, 3G, 4G, 5G, GPS, WiFi, Lojack, and remote control signals
within a 5-80 square meter range without interfering with other
electronic devices. Key Features
Technical Specifications
Applications
Product Images Packaging Frequently Asked Questions Why does the phone's signal indicator still show signal when the
jammer is working? This is a visual illusion. The phone cannot actually communicate.
When you attempt to make a call, you'll notice no signal on the
indicator. The jammer doesn't interfere with other electronic
devices when antennas are properly installed. Does the shield create coverage dead spots? The electromagnetic signals operate within mobile communication
bands and only block mobile communications. The signals remain
relatively static and don't affect other electronic equipment. Is the signal jammer harmful to humans or mobile phones? The emitted electromagnetic signal strength is very weak and far
below levels harmful to humans. The jammer only blocks the phone's
forward signal to prevent connection with base stations, causing no
damage to phones. Is there a difference between indoor and outdoor shielding
distance? Yes. The 30-40 meter effective distance typically refers to indoor
use. In open areas, shielding can extend several hundred meters.
Effectiveness depends on environmental factors like proximity to
base stations. Does the jammer work equally on GSM and CDMA phones? CDMA phones have superior anti-interference performance, so
effective distance is slightly smaller (2-4 meters less) than for
GSM phones. Important sites may require additional jammers for
complete CDMA coverage. Is it normal for the device to become warm during operation? Yes, this is normal. The aluminum alloy construction provides
effective heat dissipation, allowing for stable long-term operation
without damaging the unit. |
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| Product Tags: 12CH Cell Phone Signal Jammer 20m Radius Cell Phone Signal Jammer omni antennas Cell Phone Signal Blocker |
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