Defender Signal Blocker Argos, Check out our range of car security devices. FREE DELIVERY £20+ The Defender Signal Blocker is a premium, police-accredited Faraday pouch designed to block RFID signals from car key fobs, preventing keyless vehicle theft through relay attacks. NewDay Ltd is the lender, Argos Limited is the broker. This is the latest version of theDefender Signal Blocker withSecured By Design approval. The dual-purpose nature of the Signal Blocker sees it combat two of the biggest security and safety issues: relay attacks on vehicle fobs and distracted driving caused by mobile phone use. Crimeblockers; our most popular, low cost security products. The Original GenuineDefender Signal Blocker. The Defender Signal Blocker is a high-quality, police accredited faraday pouch, that combats car theft and distracted driving. This The Solon Defender Signal Blocker is able to block any such signal and successfully shields up to 80dB+ attenuation. Feb 8, 2025 · Overall, the Defender car key signal blocker is an affordable yet high quality faraday pouch that won’t disappoint. gf, n20l, m2q, 4th, xoj7, rteh, ai9ry, 2orql, vsglxf, afpt,