Review on 🏡 1byone Motion Sensor Driveway Alarm - 1000ft Operating Range, 36 Melodies - Home Security Alert System with Plug-in Receiver & Weatherproof PIR Motion Detector - Protect Indoor/Outdoor Property by Nicholas Lim

This motion sensor system works like clockwork and has paid for itself after just a few weeks. Not only is it sensitive enough to pick up on passing traffic (just a quick adjustment to the direction it was facing solved that problem), but it also catches people and critters sneaking up onto my back deck. Lucky for a woman who lives alone on a busy street and in a house with good soundproofing. I can tell if someone is at the door, or on the steps, or on the back deck. Let me easily know when the postman brings the package or when someone is about to ring the bell. This gives me time to introduce myself or prepare before I open the door. It also helped me catch the creature rummaging through my trash cans. Caught! Funny story - the neighbor's cat figured out that he could flash the blue light when he walked past the porch sensor and he would probably hear it inside the house too. It turns out the cat has a sense of humor, as she likes to repeatedly and intentionally activate the sensors. Update: Four months later and this is the best purchase I've made all year! Gives me a great sense of security knowing when someone is around. Haven't changed the batteries yet. Also, mine have withstood the weather and are holding up great, although I've brought them in during some heavy snowstorms to keep the batteries warm.