Door, Window and Outdoor Alarms
Best Cheap Home Alarm Sensors
The best cheap home alarm sensors for doors and windows, compared on range, alerts, volume and setup, with picks for renters, shops and family safety.
Pick a home alarm you can install yourself
Plain picks, side-by-side comparisons and setup help for DIY alarm kits from Ring, SimpliSafe, eufy and abode, plus the sensors, sirens and keypads that go with them. Start with a kit, a sensor or a setup question.
Latest guides
Alarm Kits and BrandsCan a DIY Alarm System Work Without Monitoring?
Yes, a DIY alarm system without monitoring works: sensors trip the siren and push alerts to your phone. Here is what it does and does not cover.
Setup, Wi-Fi and Backup PowerHow to Choose a Long Range Wireless Security System
How to choose a long range wireless security system: match range to your property, pick the right radio, plan power and sensors so gates and sheds stay connected.
Alarm Kits and BrandsEufy Security 5-Piece Home Alarm Kit Review
eufy Security 5-Piece Home Alarm Kit review: what the sensors, keypad and HomeBase cover, how setup works, and who should buy a different kit.
Alarm Kits and BrandsBest Wireless Security Systems With No Monthly Fees
The best wireless security system with no monthly fees for most homes is the Hiseeu solar kit. Compare 9 DIY systems with local storage and app alerts.
Setup, Wi-Fi and Backup PowerHow to Install a SimpliSafe Home Alarm System
A step-by-step SimpliSafe home alarm installation guide: place the base, sensors and keypad, pair each device in the app, then test every zone.
Alarm Kits and BrandsBest DIY Home Security System With Cameras
The best DIY home security system with cameras for most homes covers both entry points and video. Compare 9 kits by cameras, recording and setup.
Alarm Kits and BrandsWhat Is the abode Security System and Who Is It For?
Learn what an abode security system includes, how its hub and sensors work, and whether it suits your home, smart devices, and monitoring needs.
Alarm Kits and Brandsabode vs SimpliSafe
Compare abode vs SimpliSafe by kit contents, smart home links, monitoring options and setup to choose a DIY alarm system that fits your home.