Boost your home security with these reliable reed switches! This 3-pack of normally closed (NC) security contacts is perfect for DIY alarm systems on doors and windows. Here's how they work: when the magnet is close, the circuit stays closed; when the magnet separates (like when a door opens), the circuit breaks and triggers your alarm. Each switch measures about 6.5cm long with 4mm mounting holes and comes with 27cm of cable for easy installation. Rated for 100V with 0.5A maximum switch current, these white ABS housing switches blend discreetly with your door and window frames. The actuation distance of 0-15mm gives you some flexibility in placement. Perfect for securing your home, workshop, or business without expensive professional installation. Whether you're building a custom security system or adding sensors to your existing setup, these reliable switches provide basic but effective intrusion detection. Easy to install with basic tools and electrical knowledge. Keep your property safer with these affordable security components that get the job done!
Free 30-day returns 
Free 30-day returns
