This Blink Outdoor 4 camera and Wired Doorbell 2K+ bundle is $102 off at Amazon, a drop from the $130 regular price. It's the best deal we've seen for this bundle. The bundle includes the Sync Module Core and batteries for the camera, and the doorbell connects to existing doorbell wiring to ring inside the home. Shipping is free for Prime members. Buy Now at Amazon

Worth a look for homeowners who want wider coverage without blind spots, since the dual-lens design captures two angles from a single mount. Apply coupon code "P3GTQ9RKZWGC" for a savings of $110. Deal ends December 1.  Buy Now at ANNKE

Amazon has the Wyze Bulb Cam at $35, down from $50. That's the best deal we've seen for this model. The camera screws into a standard light socket and works with Alexa, Google Assistant, and IFTTT. It needs a 2.4GHz Wi-Fi connection, can't be used with a dimmer switch, and the viewing angle is set by hand rather than through the app. Shipping is free.  Buy Now at Amazon

At Amazon, this Ring Floodlight Cam 2K is $100, matching its all-time low and sitting below its 90-day average of $165. This is the newest Floodlight Cam model, with 2K video, 6x zoom, a siren, and motion-activated floodlights. A Ring Protect Plan subscription, sold separately, is needed for video history and intelligent alerts. Shipping is free. Buy Now at Amazon

This Chamberlain myQ Secure View smart lock bundle is $80 off at Amazon, bringing a deadbolt, video doorbell camera, chime, and spare battery together in one purchase. Face and fingerprint recognition are not available in Illinois, Texas, or outside the U.S. and Canada. Shipping is free. Buy Now at Amazon

At Amazon, this Chamberlain myQ video keypad kit is $45. That's $65 off and at its Amazon all-time low. The kit includes a wired power adapter, a mounting kit, and a battery pack. AI detection of people, cars, and packages requires a myQ subscription, and a free trial is included. Shipping is free. Buy Now at Amazon

This 5-pack of X-Sense SC06 smoke and carbon monoxide alarms is $30 off at Amazon, which works out to about $32 per alarm. Each unit has a sealed 10-year battery, so there are no battery swaps. These are standalone alarms and do not link wirelessly to each other. Shipping is free. Buy Now at Amazon

This Chamberlain myQ video keypad is $50 off at Amazon. The camera records in 2K and sends motion alerts to the myQ app, and the keypad lets you create PIN codes with set access times for family, guests, or service providers. AI detection of people, cars, and packages and recorded video history require a myQ subscription, with a free trial included. Shipping is free. Buy Now at Amazon

Amazon is offering Ring security cameras, doorbells, and bundles, with the Ring Indoor Cam 2K starting at $25 and the Ring Battery Doorbell 2K at $40. Doorbell-and-camera bundles run from $50, including a Battery Doorbell paired with an Indoor Cam, while wired Floodlight Cam 2K models start at $100. Shipping is free for Prime members. Shop Now at Amazon

This X-Sense smart mailbox alarm is $30, well below its 90-day Amazon average of $41. The kit includes the SBS50 base station, which can connect up to 50 X-Sense devices. The alarm works with curbside, wall mount, slot, and cluster mailboxes, but not mail slots without lids. Shipping is free. Buy Now at Amazon

Costco has the SimpliSafe Series 2 10-piece security system for $100 off, with the discount valid through November 15 and limited to 2 per member. The kit covers entry points, motion detection, and the outdoors with an included camera, and 3 months of professional monitoring are included at no extra charge. There are no long-term contracts, and shipping and handling are included. Buy Now at Costco

The Ring Spotlight Cam 2K is $80 off at Amazon, and the $90 price reaches its Amazon all-time low. It's also well below its 90-day average of $142. Motion alerts, spotlights, and a siren are built in, though saved video history requires a separate Ring Protect Plan subscription. Shipping is free. Buy Now at Amazon

This Ring Outdoor Cam 2K is $50 off at Amazon and matches its Amazon all-time low of $50. Its 90-day average on Amazon is $91. It runs on a battery and has a weather-resistant build, so it can be mounted without wiring. Ring Protect Plan features like video history and intelligent alerts require a subscription sold separately. Shipping is free. Buy Now at Amazon

At Amazon, this Ring Battery Doorbell 2K is $40 for Prime members, down from $100. It's the best deal we've seen for this model.The built-in battery recharges over USB-C, so no existing doorbell wiring is needed. Recording history and AI-powered alerts require a Ring Protect subscription, which is sold separately. Shipping is free. Buy Now at Amazon

Amazon has the newest Ring Battery Doorbell 2K at $40 for Prime members, which matches its Amazon all-time low. That is below its 90-day average of $73. AI-powered alerts and video history require a Ring Protect subscription, which is sold separately. Shipping is free. Buy Now at Amazon

This setup suits anyone wanting whole-property coverage without piecing together separate systems, with the dual-lens cameras giving wider angles at entry points while the standard IP cameras cover the rest. Apply coupon code "4KCWSCQ" for a savings of $100.  Buy Now at ANNKE

Amazon's price of $79 for this Blink Outdoor XR+ system matches its all-time low. The bundle covers two cameras, a wired doorbell, and the extended-range Sync Module XR+. Buy Now at Amazon

This X-Sense smart mailbox alarm is $30, well below its 90-day Amazon average of $41. The kit includes the SBS50 base station, which can connect up to 50 X-Sense devices. The alarm works with curbside, wall mount, slot, and cluster mailboxes, but not mail slots without lids. Shipping is free. 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

X-Sense's SWS54 Wi-Fi water leak detector kit is $12 off at Amazon, and the price sits below its 90-day average of $47. The kit includes three sensors and a base station, and the sensors and base both sound 120 dB alarms. Shipping is free. Buy Now at Amazon