Hey home security enthusiasts! These PATIKIL magnetic reed switches are exactly what you need to up your security game without breaking the bank. Each 2-pack comes with everything required - the sensors themselves, matching magnets, and even installation screws. The specs are pretty impressive: they're normally open/closed (NO/NC) type, measure 28x14x9mm, handle up to 500mA current and 100V voltage, with an operating distance of 10-15mm. Made from durable ABS material that's built to last through years of use. Installation is super straightforward - just mount the contact on your door or window frame and the magnet on the moving part. They work with most alarm systems and can even be used for cool automation stuff like turning on lights when a door opens. Perfect for homes, offices, shops, hotels - basically anywhere you want to monitor when doors or windows are being opened. The surface-mounted design means no complicated wiring or special tools needed. Pro tip: make sure you align them properly during installation for reliable operation. For the price, you're getting professional-grade security sensors that are typically much more expensive. Seriously, whether you're building a full security system or just want to monitor that one window that always worries you, these little switches deliver big performance!
Free 30-day returns 
Free 30-day returns
