Napco Gemini Door & Window Sensors
All magnetic contacts are not created equal. Sentrol truly is the leading brand in magnetic contacts, manufacturing the best-known, highest-quality contacts in the security industry. Sentrol has developed a range of innovative designs, helping assure complete reliability even in the most difficult environments. Today, we offer the industry's most comprehensive line of contacts and peripherals available, so you'll always have the right solution for every application. More...
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