Enhance your security system with this reliable N78G/STDD recessed door contact set. This professional-grade sensor features a 1-inch wide gap tolerance and comes as a complete switch/magnet set in a clean grey finish. The double pole, double throw configuration offers versatile installation options for various security applications. Made in the US and backed by a 1-year manufacturer warranty. This standard door contact is designed for dependable performance in both residential and commercial settings. The recessed design allows for discreet installation, maintaining your space's aesthetic while providing effective door monitoring capabilities. Perfect for security professionals and DIY installers alike, this contact set integrates seamlessly with most security and surveillance systems. Each package includes one complete sensor unit with all necessary components for installation.