The #1 tool
Essential tool for professional cellular testing. As someone in the security and fire alarm industry, I rely on Open Signal daily to ensure our communication systems work flawlessly. The app helps me test signal strength, data speeds, and locate towers exactly where I'm standing. Perfect for determining if we need external antennas and where to point them. Whether you're installing cellular communicators or just want to optimize your connection, this free app delivers professional-grade insights with incredible ease of use. After 30 years in the field, I can confidently say this app doesn't just save time - it helps save lives. A must-have for anyone working with cellular systems.
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