X-Sense Smart Water Leak Detector

This six-pack of X-Sense smoke detectors is $28 off the regular price of $165. Each alarm runs on a sealed 10-year battery, so there's no need to swap batteries over the unit's lifespan, and the whole set can interconnect with up to 18 compatible alarms so every detector sounds when one senses smoke. Buy Now at Amazon

This X-Sense security system is $44, down from $65. The 5-piece set covers a base station, two door sensors, a motion sensor, and a keypad, and it works with Alexa for voice-controlled arming and disarming. The system can also expand with additional sensors and keypads for larger homes. Buy Now at Amazon

This X-Sense 5-pack of smoke detectors is $94 at Amazon, matching its Amazon all-time low and below its 90-day average of $106. Each alarm has a sealed 10-year battery, so there are no battery swaps for a decade. The alarms work on their own and do not connect to each other or to an app. Shipping is free. Buy Now at Amazon

At Amazon, get this myQ Garage Plug-in 2K Smart WiFi Camera for $28. It's the best price Amazon has charged for this model. It records 2K video with night vision and a 130° wide-angle lens, and it's rated to work in temperatures from -4°F to 122°F. The magnetic base allows for tool-free mounting on any metal surface in the garage. Buy Now at Amazon

This Zoom In on Security sale has just gone live at Woot with a wide range of surveillance and optics gear, from trail cameras to binoculars and night vision gear. There are deep discounts on home security items like the Anona Security Camera 4-Pack and the Gyliziex Indoor Security Cameras 2-Pack. Cellular trail cameras see some of the steepest cuts, with the Muddy Matrix 2.0 at 78% off its regular price. Hunting and outdoor optics are also includes in the sale, with the SIG SAUER Canyon HD binoculars and ATN BlazeSeeker thermal monocular. This deal ends October 30. Shop Now at Woot! An Amazon Company

Best Buy has eufy security gear on sale, covering smart locks, video doorbells, and outdoor cameras. The eufy Smart Lock C220 drops to $100, and the eufyCam 3 three-camera 4K solar kit with HomeBase 3 is $395, down from $600.  Buy Now at Best Buy

This VEVOR wall safe is priced at $67 and offers multiple ways to unlock it, including fingerprint, password, key, and turning knob. It's the best price we could find by $7. It's built from cold-rolled steel and includes adjustable shelves with felt padding to protect stored valuables. An external power box is included for emergency access if the battery dies or the key is lost. Buy Now at Amazon

Clip the on-page coupon to knock this alternative Halloween costume down to $18. That's a savings of $5. Buy Now at Amazon

At Amazon, clip the on-page coupon to get this Motorized Solar-Powered Outdoor Roller Shade for $115. That's $105 less than our mention from July and the best deal we've seen for this model. It can be controlled through the Yoolax app or a included remote, and is compatible with Alexa and Google Assistant with a Bluetooth hub. The shade is available in widths up to 16 ft., making it suitable for covering large patios or porches with a single unit. Buy Now at Amazon

Here you'll find the best limited-time offers that Amazon has available today as part of the lead-up to its Prime Big Deal Days sale on October 6 and 7. Shipping is free for Prime members. The sale refreshes at 3am ET each day. Shop Now at Amazon

Stock up for Halloween with a selection of candy bulk bags, featuring individually wrapped candies, as well as branded options. Prime members get free shipping and some items drop in price via Sub & Save. Shop Now at Amazon

At Amazon, this X-Sense radon detector is $26 off the regular price of $80. The built-in display shows short-term and long-term radon averages, so there are no lab fees or mail-in tests. It runs on 3 AA batteries, which are included, and the manufacturer backs it with a 5-year warranty. Shipping is free. Buy Now at Amazon

This X-Sense SC01 detector is at $36 for Prime members. That is its all-time low price on Amazon and beats the 90-day average of $42. It combines smoke and carbon monoxide detection in one unit with a 10-year sealed battery, so there's no wiring or separate battery replacements to worry about. It ships for free.  Buy Now at Amazon

This X-Sense water leak detector set is $13 off, and the $50 price is below its Amazon 90-day average of $60. The kit includes four sensors and a base station, and the sensors are 0.7" thick for fitting behind toilets or under appliances. Shipping is free. Buy Now at Amazon